All The Claims

1. A data backup method for a computer system that includes a request-source server device, a request-source storage device coupled to the request-source server device, a request-destination storage device coupled to the request-source storage device via a first communication line, a request-destination server device coupled to the request-destination storage device and coupled to the request-source server device via a second communication line, and a backup storage device coupled to the request-destination server device, the request-source storage device having a disk drive for storing data, and a disk control unit for controlling input and output of data to and from the disk drive, the data backup method comprising:
providing, by the disk control unit, the request-source server device with a storage area of the disk drive as at least one logical volume;
determining, by the request-source server device, upon receiving a request to back up data stored in a first logical volume which is one of the logical volumes, whether a second logical volume which constitutes a copy pair with the first logical volume is present in the request-source storage device;
requesting, by the request-source server device, upon determining that the second logical volume is not present, the request-source storage device to produce the second logical volume; and
transmitting, by the request-source server device, a request to execute a process to back up data stored in one of the existing second logical volume and the produced second logical volume to the backup storage device to the request-destination server device.
2. The data backup method according to claim 1, further comprising producing, by the request-destination server device, upon receiving the request to execute the backup process, a virtual server device for executing the requested backup process,
wherein the produced virtual server device has an access to the second logical volume of the request-source storage device via the request-destination storage device and the first communication line.
3. The data backup method according to claim 2, further comprising deleting, by the request-destination server device, upon completion of the requested backup process, the produced virtual server device.
4. The data backup method according to claim 1, further comprising releasing, by the request-source storage device, before the request-source server device transmits the request to execute the backup process to the request-destination server device, the copy pair constituted by the first logical volume and the second logical volume.
5. The data backup method according to claim 4, further comprising reconstituting, by the request-source server device, upon completion of the requested backup process in a case where the request-source server device determines that the second logical volume is present, the copy pair with the first logical volume and the second logical volume.
6. The data backup method according to claim 1, further comprising:
transmitting, by the request-source server device, upon receiving a request to restore data stored in a third volume which is one of the logical volumes, a request to execute a restore process to the request-destination server device; and
producing, by the request-destination server device, upon receiving the request to execute the restore process, a virtual server device used for executing the requested restore process;
wherein the produced virtual server device has an access to the third logical volume via the request-destination storage device and the first communication line.
7. The data backup method according to claim 6, further comprising deleting, by the request-destination server device, upon completion of the requested restore process, the produced virtual server device.
8. A computer system, comprising:
a request-source server device;
a request-source storage device coupled to the request-source server device;
a request-destination storage device coupled to the request-source storage device via a first communication line;
a request-destination server device coupled to the request-destination storage device and coupled to the request-source server device via a second communication line; and
a backup storage device coupled to the request-destination server device, wherein:
the request-source storage device comprises a disk drive for storing data, and a disk control unit for controlling input and output of data to and from the disk drive;
the request-source storage device provides the request-source server device with a storage area of the disk drive as at least one logical volume;
the request-source server device determines, upon receiving a request to back up data stored in a first logical volume which is one of the logical volumes, whether a second logical volume which constitutes a copy pair with the first logical volume is present in the request-source storage device;
the request-source server device requests, upon determining that the second logical volume is not present, the request-source storage device to produce the second logical volume; and
the request-source server device transmits a request to execute a process to back up data stored in one of the existing second volume and the produced second logical volume to the backup storage device to the request-destination server device.
9. The computer system according to claim 8, wherein:
the request-destination server device produces, upon receiving the request to execute the backup process, a virtual server device for executing the requested backup process; and
the produced virtual server device has an access to the second logical volume of the request-source storage device via the request-destination storage device and the first communication line.
10. The computer system according to claim 8, wherein the request-destination server device deletes, upon completion of the requested backup process, the produced virtual server device.
11. The computer system according to claim 8, wherein the request-source server device releases, before the request-source server device transmits the request to execute the backup process to the request-destination server device, the copy pair constituted by the first logical volume and the second logical volume.
12. The computer system according to claim 11, wherein the request-source server device reconstitutes, upon completion of the requested backup process in a case where the request-source server device determines that the second logical volume is present, the copy pair with the first logical volume and the second logical volume.
13. The computer system according to claim 8, wherein:
the request-source server device transmits, upon receiving a request to restore data stored in a third volume which is one of the logical volumes, a request to execute a restore process to the request-destination server device;
the request-destination server device produces, upon receiving the request to execute the restore process, a virtual server device for executing the requested restore process; and
the produced virtual server device has an access to the third logical volume via the request-destination storage device and the first communication line.
14. The computer system according to claim 13, wherein the request-destination server device deletes, upon completion of the requested restore process, the produced virtual server device.
15. A data backup method for a computer system that includes a request-source server device, a request-source storage device coupled to the request-source server device, a request-destination storage device coupled to the request-source storage device via a first communication line, a request-destination server device coupled to the request-destination storage device and coupled to the request-source server device via a second communication line, and a backup storage device coupled to the request-destination server device, the request-source storage device having a disk drive for storing data, and a disk control unit for controlling input and output of data to and from the disk drive, the data backup method comprising:
providing, by the disk control unit, the request-source server device with a storage area of the disk drive as at least one logical volume; and
producing, by the request-destination server device, upon receiving a request to execute a backup process, a virtual server device used for executing the requested backup process,
wherein the produced virtual server device has an access to the logical volume via the request-destination storage device and the first communication line.
16. The data backup method according to claim 15, further comprising:
determining, by the request-source server device, upon receiving a request to back up data stored in a first logical volume which is one of the logical volumes, whether a second logical volume which constitutes a copy pair with the first logical volume is present in the request-source storage device;
requesting, by the request-source server device, upon determining that the second logical volume is not present, the request-source storage device to produce the second logical volume; and
transmitting, by the request-source server device, a request to execute a process to back up data stored in one of the existing second volume and the produced second logical volume to the backup storage device to the request-destination server device.
17. The data backup method according to claim 16, further comprising executing, by the produced virtual server device, upon confirming that the first logical volume and the second logical volume are in a pair state, the backup process.
18. The data backup method according to claim 15, further comprising deleting, by the request-destination server device, upon completion of the requested backup process, the produced virtual server device.
19. The data backup method according to claim 15, further comprising producing, by the request-destination server device, upon receiving a request to execute a restore process, a virtual server device for executing the requested restore process,
wherein the produced virtual server device has an access to the logical volume of the request-source storage device via the request-destination storage device and the first communication line.
20. The data backup method according to claim 19, further comprising deleting, by the request-destination server device, upon completion of the requested restore process, the produced virtual server device.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A process to analyze fluids entrained in boreholes, which process comprises:
trapping gas escaping from drilling mud in a mud tank in order to acquire a trap gas sample;
gathering said trap gas samples from return of said drilling mud at multiple depths;
subjecting said samples to mass spectrometry in order to determine mass to charge ratios data for multiple chemical species utilizing a single portable apparatus; and
analyzing said mass to charge ratios data in relation to depth or time to produce multiple chemical species indicators chosen from the group consisting of gaseous petroleum species indicators, liquid petroleum species indicators and water-soluble organic species and inorganic species indicators.
2. A process to analyze fluids as set forth in claim 1 wherein said data is used to explore for oil and gas.
3. A process to analyze fluids entrained in boreholes, which process comprises:
trapping gas escaping from drilling mud in a mud tank in order to acquire a trap gas sample;
gathering said trap gas samples from return of said drilling mud at multiple depths;
subjecting said samples to mass spectrometry in order to determine mass to charge ratios data for multiple chemical species utilizing a single portable apparatus;
analyzing said mass to charge ratios data in relation to depth or time to produce multiple chemical species indicators chosen from the group consisting of gaseous petroleum species indicators, liquid petroleum species indicators and water-soluble organic species and inorganic species indicators; and
gathering and analyzing different samples from at least one other type of analysis including mud fluid analysis.
4. A process to analyze fluids as set forth in claim 3 including said trap gas analysis, said mud fluid analysis, cuttings background analysis, and cuttings crush analysis, and including the step of switching among said analyses.
5. A process to analyze fluids entrained in boreholes, which process comprises:
trapping gas escaping from drilling mud in a mud tank in order to acquire a trap gas sample;
gathering said trap gas samples from return of said drilling mud at multiple depths;
subjecting said samples to mass spectrometry in order to determine mass to charge ratios data for multiple chemical species utilizing a single portable apparatus;
analyzing said mass to charge ratios data in relation to depth or time to produce multiple chemical species indicators chosen from the group consisting of gaseous petroleum species indicators, liquid petroleum species indicators and water-soluble organic species and inorganic species indicators; and
gathering and analyzing different samples from at least one other type of analysis including cuttings background analysis.
6. A process to analyze fluids as set forth in claim 5 including said trap gas analysis, said cuttings background analysis, and mud fluid analysis and cuttings crush analysis, and including the step of switching among said analyses.
7. A process to analyze fluids entrained in boreholes, which process comprises:
trapping gas escaping from drilling mud in a mud tank in order to acquire a trap gas sample;
gathering said trap gas samples from return of said drilling mud at multiple depths;
subjecting said samples to mass spectrometry in order to determine mass to charge ratios data for multiple chemical species utilizing a single portable apparatus;
analyzing said mass to charge ratios data in relation to depth or time to produce multiple chemical species indicators chosen from the group consisting of gaseous petroleum species indicators, liquid petroleum species indicators and water-soluble organic species and inorganic species indicators; and
gathering and analyzing different samples from at least one other type of analysis including cuttings crush analysis.
8. A process to analyze fluids as set forth in claim 7 including said trap gas analysis, said cuttings crush analysis, and mud fluid analysis, and cuttings background analysis, and including the step of switching among said analyses.

What is claimed is:

1. An image forming apparatus comprising:
an image bearing member;
image forming means for sequentially forming toner images of different colors on said image bearing member, said image forming means including a charging member for electrically charging said image bearing member to a polarity which is the same as a polarity of regular toner;
an intermediary transfer member having a volume resistivity of 1010-1016 cm;
image transferring means for applying a voltage to said intermediary transfer member to transfer electrostatically, sequentially and superimposedly the toner images of the different colors formed on said image bearing member by said image forming means onto said intermediary transfer member at a first transfer position, wherein toner images on said intermediary transfer member are transferred onto a transfer material at a second transfer position; and
control means for controlling a voltage applied to said charging member, said control means controlling the voltage applied to said intermediary transfer member by said transferring means in accordance with the voltage applied to said charging member.
2. An apparatus according to claim 1, further comprising first detecting means for detecting a density of a toner image formed on said image bearing member or the toner image transferred onto said intermediary transfer member, wherein said control means controls the voltage applied to said charging member in accordance with a detection result of said first detecting means.
3. An apparatus according to claim 1, further comprising second detecting means for detecting a temperature and a humidity in a main assembly of said apparatus, wherein said control means controls the voltage applied to said charging member in accordance with a detection result of said second detecting means.
4. An apparatus according to claim 1, further comprising second transferring means for electrostatically transferring the toner images of different colors transferred onto said intermediary transfer member, onto a transfer material at said second transfer position, wherein said second transferring means is contacted to the transfer material during image transfer operation.
5. An apparatus according to claim 4, wherein said intermediary transfer member has an electroconductive member extending from said first transfer position to said second transfer position, and the transfer of the toner images of different colors from said intermediary transfer member onto a transfer material at the second transfer position, and the transfer of the toner image onto the first transfer position for a next first color, are capable of being carried out simultaneously.
6. An apparatus according to claim 5, wherein when a toner image of first color is transferred from said image bearing member onto said intermediary transfer member, a predetermined voltage irrespective of the voltage applied to said charging member is applied to said intermediary transfer member by said transferring means.
7. An apparatus according to claim 1, wherein said control means provides different potential differences between the voltage applied to said charging member and the voltage applied to said intermediary transfer member by said transferring means, for different colors.
8. An apparatus according to claim 1, wherein said intermediary transfer member includes an elastic layer having a volume resistivity of 103-108 cm and a dielectric layer thereon having a volume resistivity of 1010-1016 cm.
9. An apparatus according to claim 7, wherein said intermediary transfer member includes an elastic layer having a volume resistivity of 106-107 cm and a dielectric layer thereon having a volume resistivity of 103-1014 cm.
10. An apparatus according to claim 1, wherein said intermediary transfer member is in the form of a belt.
11. An apparatus according to any one of claims 1-10, wherein a plurality of such said image bearing members are provided to carry the toner images of different colors, and wherein the toner images of the different colors formed on the respective image bearing members, are transferred onto the intermediary transfer member electrostatically, sequentially and superimposedly.
12. An apparatus according to claim 11, wherein a plurality of such said image forming means are provided to form the toner images of different colors on respective ones of said image bearing members, and wherein each of said image forming means includes said charging member.
13. An apparatus according to claim 12, wherein a plurality of such transferring means are provided to apply the voltages to said intermediary transfer member for electrostatically transferring the toner images of the different colors onto said intermediary transfer member.
14. An apparatus according to claim 1, wherein said stripe control means controls the voltage applied to said charging member for each color of the toner.
15. An image forming apparatus comprising:
an image bearing member;
image forming means for sequentially forming toner images of different colors on said image bearing member, said image forming means including a charging member for electrically charging said image bearing member to a polarity which is the same as a polarity of regular toner;
an intermediary transfer member having a volume resistivity of 1010-1016 cm;
image transferring means for applying a voltage to said intermediary transfer member to transfer electrostatically, sequentially and superimposedly the toner images of the different colors formed on said image bearing member by said image forming means onto said intermediary transfer member at a first transfer position, wherein toner images on said intermediary transfer member are transferred onto a transfer material at a second transfer position; and
control means for controlling the voltage applied to said intermediary transfer member by said transferring means in accordance with a charged potential of a surface of said image bearing member.
16. An apparatus according to claim 15, further comprising first detecting means for detecting a density of a toner image formed on said image bearing member or the toner image transferred onto said intermediary transfer member, wherein said control means controls the voltage applied to said charging member in accordance with a detection result of said first detecting means.
17. An apparatus according to claim 15, further comprising second detecting means for detecting a temperature and a humidity in a main assembly of said apparatus, wherein said control means controls the voltage applied to said charging member in accordance with a detection result of said second detecting means.
18. An apparatus according to claim 15, further comprising second transferring means for electrostatically transferring the toner images of different colors transferred onto said intermediary transfer member, onto a transfer material at said second transfer position, wherein said second transferring means is contacted to the transfer material during image transfer operation.
19. An apparatus according to claim 18, wherein said intermediary transfer member has an electroconductive member extending from said first transfer position to said second transfer position, and the transfer of the toner images of different colors from said intermediary transfer member onto a transfer material at the second transfer position, and the transfer of the toner image onto the first transfer position for a next first color, are capable of being carried out simultaneously.
20. An apparatus according to claim 19, wherein when a toner image of first color is transferred from said image bearing member onto said intermediary transfer member, a predetermined voltage irrespective of the voltage applied to said charging member is applied to said intermediary transfer member by said transferring means.
21. An apparatus according to claim 15, wherein said control means provides different potential differences between the voltage applied to said charging member and the voltage applied to said intermediary transfer member by said transferring means, for different colors.
22. An apparatus according to claim 15, wherein said intermediary transfer member includes an elastic layer having a volume resistivity of 103-108 cm and a dielectric layer thereon having a volume resistivity of 1010-1016 cm.
23. An apparatus according to claim 22, wherein said intermediary transfer member includes an elastic layer having a volume resistivity of 106-107 cm and a dielectric layer thereon having a volume resistivity of 1013-1014 cm.
24. An apparatus according to claim 15, wherein said intermediary transfer member is in the form of a belt.
25. An apparatus according to any one of claims 15-24, wherein a plurality of such said image bearing members are provided to carry the toner images of different colors, and wherein the toner images of the different colors formed on the respective image bearing members, are transferred onto the intermediary transfer member electrostatically, sequentially and superimposedly.
26. An apparatus according to claim 25, wherein a plurality of such said image forming means are provided to form the toner images of different colors on respective ones of said image bearing members, and wherein each of said image forming means includes said charging member.
27. An apparatus according to claim 26, wherein a plurality of such transferring means are provided to apply the voltages to said intermediary transfer member for electrostatically transferring the toner images of the different colors onto said intermediary transfer member.
28. An apparatus according to claim 15, wherein said image forming means is provided with an exposure device for exposing the surface of said image bearing member having been charged by said charging member.
29. An apparatus according to claim 28, further comprising third detecting means for detecting a light portion potential on the surface of said image bearing member exposed by said exposure device, wherein said control means controls the voltage applied to said intermediary transfer member by said transferring means in accordance with a detection result of said third detecting means.
30. An apparatus according to claim 29, wherein said control means controls the voltage applied to said intermediary transfer member by said transferring means in accordance with a predetermined potential between the charged potential and the light portion potential.
31. An apparatus according to claim 15, further comprising a fourth detecting means for detecting the charged potential of the surface of said image bearing member.
32. An apparatus according to claim 15, wherein said control means controls the voltage applied to said charging member for each color of the toner.
33. An image forming apparatus comprising:
an image bearing member;
image forming means for sequentially forming toner images of different colors on said image bearing member, said image forming means including a charging member for electrically charging said image bearing member to a polarity which is the same as a polarity of regular toner;
an intermediary transfer member having a volume resistivity of 1010-1016 cm;
image transferring means for applying a voltage to said intermediary transfer member to transfer electrostatically, sequentially and superimposedly the toner images of the different colors formed on said image bearing member by said image forming means onto said intermediary transfer member at a first transfer position, wherein toner images on said intermediary transfer member are transferred onto a transfer material at a second transfer position; and
control means for controlling a voltage applied to said charging member, wherein said control means controls to provide a substantially constant difference between the voltage application to said charging member and the voltage applied to said intermediary transfer member by said transferring means even when the voltage applied to said charging member is changed.
34. An apparatus according to claim 33, further comprising first detecting means for detecting a density of a toner image formed on said image bearing member or the toner image transferred onto said intermediary transfer member, wherein said control means controls the voltage applied to said charging member in accordance with a detection result of said first detecting means.
35. An apparatus according to claim 33, further comprising second detecting means for detecting a temperature and a humidity in a main assembly of said apparatus, wherein said control means controls the voltage applied to said charging member in accordance with a detection result of said second detecting means.
36. An apparatus according to claim 33, further comprising second transferring means for electrostatically transferring the toner images of different colors transferred onto said intermediary transfer member, onto a transfer material at said second transfer position, wherein said second transferring means is contacted to the transfer material during image transfer operation.
37. An apparatus according to claim 36, wherein said intermediary transfer member has an electroconductive member extending from said first transfer position to said second transfer position, and the transfer of the toner images of different colors from said intermediary transfer member onto a transfer material at the second transfer position, and the transfer of the toner image onto the first transfer position for a next first color, are capable of being carried out simultaneously.
38. An apparatus according to claim 37, wherein when a toner image of first color is transferred from said image bearing member onto said intermediary transfer member, a predetermined voltage irrespective of the voltage applied to said charging member is applied to said intermediary transfer member by said transferring means.
39. An apparatus according to claim 33, wherein said control means provides different potential differences between the voltage applied to said charging member and the voltage applied to said intermediary transfer member by said transferring means, for different colors.
40. An apparatus according to claim 33, wherein said intermediary transfer member includes an elastic layer having a volume resistivity of 103-108 cm and a dielectric layer thereon having a volume resistivity of 1010-1016 cm.
41. An apparatus according to claim 40, wherein said intermediary transfer member includes an elastic layer having a volume resistivity of 103-108 cm and a dielectric layer thereon having a volume resistivity of 1010-1016 cm.
42. An apparatus according to claim 33, wherein said intermediary transfer member is in the form of a belt.
43. An apparatus according to any one of claims 33-42, wherein a plurality of such said image bearing members are provided to carry the toner images of different colors, and wherein the toner images of the different colors formed on the respective image bearing members, are transferred onto the intermediary transfer member electrostatically, sequentially and superimposedly.
44. An apparatus according to claim 43, wherein a plurality of such said image forming means are provided to form the toner images of different colors on respective ones of said image bearing members, and wherein each of said image forming means includes said charging member.
45. An apparatus according to claim 44, wherein a plurality of such transferring means are provided to apply the voltages to said intermediary transfer member for electrostatically transferring the toner images of the different colors onto said intermediary transfer member.
46. An apparatus according to claim 33, wherein said control means controls the voltage applied to said charging member for each color of the toner.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A fibrous structure comprising a plurality of crosslinked hydroxyl polymer fibers, wherein the fibrous structure exhibits an initial total wet tensile of at least 1.18 gcm.
2. The fibrous structure according to claim 1 wherein the fibrous structure exhibits an initial total wet tensile of at least 1.57 gcm.
3. The fibrous structure according to claim 2 wherein the fibrous structure exhibits an initial total wet tensile of at least 1.97 gcm.
4. The fibrous structure according to claim 1 wherein the hydroxyl polymer is selected from the group consisting of: polyvinyl alcohol, chitosan, chitosan derivatives, cellulose derivatives, starch, starch derivatives, gums, arabinans, galactans and mixtures thereof.
5. The fibrous structure according to claim 1 wherein the hydroxyl polymer has a weight average molecular weight of from about 10,000 to about 40,000,000 gmol.
6. The fibrous structure according to claim 1 wherein the crosslinked hydroxyl polymer fibers comprise a crosslinking facilitator.
7. The fibrous structure according to claim 6 wherein the crosslinking facilitator comprises an acid having a pKa of between 2 and 6 or a salt thereof.
8. The fibrous structure according to claim 7 wherein the acid comprises a Bronsted Acid.
9. The fibrous structure according to claim 7 wherein the salt comprises an ammonium salt.
10. The fibrous structure according to claim 6 wherein the crosslinking facilitator is selected from the group consisting of: acetic acid, benzoic acid, citric acid, formic acid, phosphoric acid, succinic acid, glycolic acid, lactic acid, maleic acid, phthalic acid and salts thereof, and mixtures thereof.
11. The fibrous structure according to claim 1 wherein at least one of the crosslinked hydroxyl polymer fibers comprises a pH adjusting agent.
12. The fibrous structure according to claim 1 wherein at least one of the crosslinked hydroxyl polymer fibers exhibits a fiber diameter of less than about 50 \u03bcm.
13. The fibrous structure according to claim 1 wherein at least one of the crosslinked hydroxyl polymer fibers exhibits a fiber diameter of less than about 10 \u03bcm.
14. The fibrous structure according to claim 1 wherein at least one of the crosslinked hydroxyl polymer fibers is free of thermoplastic, water-insoluble polymers.
15. The fibrous structure according to claim 1 wherein at least one of the crosslinked hydroxyl polymer fibers is a multi-component fiber.
16. The fibrous structure according to claim 15 wherein the multi-component fiber is a bicomponent fiber.
17. The fibrous structure according to claim 16 wherein the bicomponent fiber is a coresheath bicomponent fiber.
18. The fibrous structure according to claim 1 wherein at least one of the crosslinked hydroxyl polymer fibers is a meltblown fiber.
19. The fibrous structure according to claim 1 wherein at least one of the crosslinked hydroxyl polymer fibers is a spunbond fiber.
20. A sanitary tissue product comprising a fibrous structure according to claim 1.