1-20. (canceled)
21. A method of installing a new storage device to a system having a host computer, a primary storage device coupled to the host computer via a first host connection, and a secondary storage device coupled to the primary storage device via a first remote copy connection, the system configured to write data from the primary storage device to the secondary storage device using the first remote copy connection, the method comprising:
coupling the new storage device to the primary storage device via a storage connection;
coupling the new storage device to the host computer via a new host connection;
removing the first host connection between the host computer and the primary storage device;
receiving remote copy configuration information at the new storage device; and
if the host computer issues a write request to the new storage device during the receiving step, writing data associated with the write request to the new storage device and to the primary storage device.
22. The method of claim 1, further comprising:
migrating data from the primary storage device to the new storage device while remote copying with the secondary storage device is performed.
23. The method of claim 1, further comprising:
removing the first remote copy connection between the primary storage device and the second storage device;
coupling the new storage device to the second storage device via a new remote copy connection; and
using the new remote copy connection to remote copy write data from the new storage device to the secondary storage device based on the remote copy configuration information;
wherein data accompanied with the write request are maintained as pending data in the new storage device while the remote copy function is disrupted.
24. A method of installing a new primary storage device and a new secondary storage device to a computer system having a host computer, an old primary storage device coupled to the host computer via a host connection, and an old secondary storage device coupled to the old primary storage device via an old remote copy connection, the computer system configured to remote copy write data from the host computer to the old primary storage device to the old secondary storage device, the method comprising:
coupling a new primary storage device to the old primary storage device;
coupling a new secondary storage device to the old secondary storage device;
coupling the new primary storage device to the host computer;
removing the host connection between the host computer and the old primary storage device;
receiving remote copy configuration information at the new primary storage device from the old primary storage device;
coupling the new primary storage device to the new secondary storage device;
initiating data migration from the old primary storage device to the new primary storage device; and
if the host computer issues a write request to the new primary storage device during the data migration from the old primary storage device to the new primary storage device, writing data associated with the write request to the new primary storage device and to the old primary storage device.
25. The method of claim 24, further comprising:
migrating data from the old primary storage device to the new primary storage device while remote copying is being performed.
26. The method of claim 24, further comprising:
if the host computer issues a read request to data not yet migrated from the old primary storage device to the new primary storage device, then causing the new primary storage device to read the requested data from the primary storage device and to send the data to the host computer.
27. A method of installing a new storage device to a system having a host computer, a primary storage device coupled to the host computer via a first host connection, and a secondary storage device coupled to the primary storage device via a first remote copy connection, the system configured to copy write data from the primary storage device to the secondary storage device via the first remote copy connection, the method in the new storage comprising:
receiving remote copy configuration information from the primary storage device;
initiating data migration from the primary storage device;
receiving a write request from the host computer;
copying write data associated with the write request to the secondary storage device based on the remote copy configuration information; and
if the write request from the host computer before the data migration is complete, writing data associated with the write request to itself and to the primary storage device.
28. A method of installing a new storage device to a system having a host computer, a primary storage device coupled to the host computer via a first host connection, and a secondary storage device coupled to the primary storage device via a first remote copy connection, the system configured to copy write data from the primary storage device to the secondary storage device via the first remote copy connection, the method in the new storage system comprising:
receiving data including remote copy configuration information from the primary storage device;
initiating data migration from the primary storage device;
receiving a read request from the host computer; and
if the read request pertains to data not yet received from the primary storage device, reading the data from the primary storage device and sending the data to the host computer.
29. A method of replacing an old primary storage device with a new primary storage device in a system having a host computer, an old primary storage device coupled to the host computer, and a secondary storage device remotely coupled to the old primary storage device via a remote copy connection, the method comprising:
coupling a new primary storage device to the old primary storage device;
coupling the new primary storage device to the host computer;
de-coupling the old primary storage device from the host computer;
initiating data migration from the old primary storage device to the new primary storage device;
maintaining the remote copy connection between the old primary storage device and the secondary storage device until data migration has completed;
if a read request for data not yet migrated from the old primary storage device to the new primary storage device is received from the host computer, then reading the data from the old primary storage device and sending the data to the host computer in response to the write request;
if a write request is received before data migration has completed, then writing the data pertaining to the write request to the old primary storage device and to the new primary storage device; and
upon completion of the data migration, then de-coupling the new primary storage device from the old primary storage device, de-coupling the remote copy connection between the old primary storage device and the secondary storage device, and establishing a new remote copy connection between the new primary storage device and the secondary storage 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. An aqueous inkjet ink comprising:
water in an amount of from 35 to 60% by mass of a total amount of the aqueous inkjet ink;
an ether in an amount of from 5 to 50% by mass of the total amount of the aqueous inkjet ink, the ether comprising at least one of polyoxyethylene diglyceryl ether having a weight average molecular weight of not more than 1,000 and polyoxypropylene diglyceryl ether having a weight average molecular weight of not more than 1,000;
2,5,8,11-tetramethyl-6-dodecine-5,8-diol in an amount of from 0.2 to 2% by mass of the total amount of the aqueous inkjet ink; and
a pigment in an amount of from 3 to 10% by mass of the total amount of the aqueous inkjet ink.
2. The ink according to claim 1, wherein the amount of water is from 40 to 50% by mass of the total amount of the aqueous inkjet ink.
3. The ink according to claim 1, wherein the amount of the ether is from 30 to 50% by mass of the total amount of the aqueous inkjet ink.
4. The ink according to claim 1, wherein the weight average molecular weight of the polyoxyethylene diglyceryl ether is 450 or more.
5. The ink according to claim 1, wherein the weight average molecular weight of the polyoxyethylene diglyceryl ether is 700 or less.
6. The ink according to claim 1, wherein the weight average molecular weight of the polyoxypropylene diglyceryl ether is 400 or more.
7. The ink according to claim 1, wherein the weight average molecular weight of the polyoxypropylene diglyceryl ether is 700 or less.
8. The ink according to claim 1, wherein the amount of the 2,5,8,11-tetramethyl-6-dodecine-5,8-diol is from 0.5 to 1% by mass of the total amount of the aqueous inkjet ink.
9. The ink according to claim 1, further comprising 3-methoxy-3-methyl-1-butanol.
10. The ink according to claim 9, wherein an amount of the 3-methoxy-3-methyl-1-butanol is from 1 to 25% by mass of the total amount of the aqueous inkjet ink.
11. The ink according to claim 1, further comprising glycerin in an amount of not more than 10% by mass of the total amount of the aqueous inkjet ink.
12. The ink according to claim 1, further comprising a compound represented by the following general formula (PPO):
H(R1)p\u2014O(CH2CH2CH2O)n\u2014(R2)qH\u2003\u2003(PPO)
wherein
R1 represents \u2014OCH(CH3)CH2\u2014 or \u2014OCH(CH2CH3)CH2\u2014,
R2 represents \u2014CH2CH(CH3)O\u2014 or \u2014CH2CH(CH2CH3)O\u2014,
each of p and q represents an integer satisfying 0\u2266(p+q)16, and
n represents an integer of from 1 to 16, with a weight average molecular weight being not more than 1,000.
13. The ink according to claim 12, wherein an amount of the compound represented by the general formula (PPO) is from 1 to 10% by mass of the total amount of the aqueous inkjet ink.
14. The ink according to claim 1, further comprising a compound represented by the following general formula (GPO):
wherein
R1 represents \u2014OCH(CH3)CH2\u2014 or \u2014OCH(CH2CH3)CH2\u2014,
R2 represents \u2014CH2CH(CH3)O\u2014or \u2014CH2CH(CH2CH3)O\u2014,
each of r and s represents an integer satisfying 0\u2266(r+s)\u226615, and
m represents an integer of from 1 to 13, with a weight average molecular weight being not more than 1,000.
15. The ink according to claim 14, wherein an amount of the compound represented by the general formula (GPO) is from 1 to 10% by mass of the total amount of the aqueous inkjet ink.
16. The ink according to claim 1, wherein the pigment is a self-dispersible pigment.
17. A method for inkjet printing comprising:
ejecting at least one type of ink composition from an inkjet head onto a paper medium to form an image, the ink composition being the aqueous inkjet ink according to claim 1.
18. The method according to claim 17, wherein the image is formed using one type of ink composition.
19. The method according to claim 17, wherein the image is formed using two or more types of ink compositions of different colors.