1. A system, comprising:
a plurality of storage systems forming a storage pool, a first storage system of the plurality of storage systems having a first storage controller, which receives inputoutput (IO) commands from host computers and provides first storage volumes to the host computers, and a second storage system of the plurality of storage systems including a second storage controller, which receives IO commands from host computers and provides second storage volumes to the host computers; and
a computer, being adapted to be coupled to the plurality of storage systems, the computer managing to add a new storage system to the storage pool or to remove one of the storage systems from the storage pool,
wherein upon adding the new storage system to the storage pool, a storage controller of the new storage system provides new storage volumes to the host computers, and the computer controls path setting between the new storage system and a storage system existing in the storage pool,
wherein upon removing the one of the storage systems from the storage pool, the computer removes the storage volumes of the removed one of the storage systems from the storage pool, and the computer controls to remove a path between the removed one of the storage systems and another storage system in the storage pool,
wherein upon removing the one of the storage systems from the storage pool, the computer controls the one of the storage systems to unmount storage volumes provided to the one of the storage systems, the storage pool to re-mount the storage volumes from the one of the storage systems, and the storage pool to unmount storage volumes provided by the storage controller of the one of the storage systems,
wherein the storage volumes unmounted from the removed one of the storage systems include physical storage volumes, and
wherein the computer controls to remove the path to the removed one of the storage systems after unmounting the storage volumes.
2. The system according to claim 1, further comprising:
wherein the computer selects to migrate a first storage volume to a second storage volume, or change control from the second storage controller to the first storage controller against a storage media which is coupled to both the first and second storage controllers, based on a load requirement of the system.
3. The system according to claim 1, wherein upon adding the new storage system to the storage pool, a storage controller of the new storage system provides storage volumes to the storage pool, and
wherein the computer controls path setting to the new storage system from the host computers.
4. The system according to claim 3, wherein upon adding the new storage system to the storage pool, the computer controls the storage pool to provide storage volumes to the new storage system, and
wherein the computer controls path setting to the storage pool from the host computers.
5. The system according to claim 1, wherein prior to removing the path to the removed one of the storage systems, the computer selects which of the storage systems in the storage pool that re-mount the storage volumes from the removed one of the storage systems, and the re-mounted physical storage volumes are provided as one or more storage media.
6. A computer adapted to be coupled to a plurality of storage systems forming a storage pool, the storage pool including a first storage system of the plurality of storage systems having a first storage controller, which receives inputoutput (IO) commands from host computers and provides first storage volumes to the host computers, and a second storage system of the plurality of storage systems including a second storage controller, which receives IO commands from host computers and provisions second storage volumes to the host computers, the computer comprising:
a processor; and
a computer-readable storage medium encoded with instructions that, when executed on the processor, instruct the processor to perform acts for controlling the storage pool and storage systems thereof, the acts comprising:
adding a new storage system to the storage pool or removing one of the storage systems from the storage pool;
wherein upon adding the new storage system to the storage pool, instructing a storage controller of the new storage system to provide new storage volumes to the host computers, and controlling path setting between the new storage system and a storage system existing in the storage pool,
wherein upon removing the one of the storage systems from the storage pool, instructing the storage pool to remove storage volumes of the removed one of the storage systems from the storage pool, and to remove a path between the removed one of the storage systems and another storage system in the storage pool, and
wherein upon removing the one of the storage systems from the storage pool, the acts further comprising:
controlling the one of the storage systems to unmount storage volumes provided to the one of the storage systems;
controlling the storage pool to re-mount the storage volumes from the one of the storage systems;
controlling the storage pool to unmount storage volumes provided by the storage controller of the one of the storage systems; and
controlling to remove the path to the removed one of the storage systems,
wherein the storage volumes unmounted from the removed one of the storage systems include physical storage volumes.
7. The computer according to claim 6, the acts further comprising:
selecting to migrate a first storage volume to a second storage volume, or changing control from the second storage controller to the first storage controller against a storage media which is coupled to both the first and second storage controllers, based on a load requirement of the storage pool.
8. The computer according to claim 6, wherein upon adding the new storage system to the storage pool, a storage controller of the new storage system provides storage volumes to the storage pool, the acts further comprising:
controlling path setting to the new storage system from the host computers.
9. The computer according to claim 8, wherein upon adding the new storage system to the storage pool, the acts further comprising:
controlling the storage pool to provide storage volumes to the new storage system; and
controlling path setting to the storage pool from the host computers.
10. The computer according to claim 6, wherein prior to removing the path to the removed one of the storage systems, the acts further comprising:
selecting which of the storage systems in the storage pool that re-mount the storage volumes from the removed one of the storage systems, and
controlling the storage pool to provide the re-mounted physical storage volumes as one or more storage media.
11. A non-transitory computer-readable medium encoded with instructions that, when executed on a processor, instruct the processor to perform a method of controlling a plurality of storage systems forming a storage pool, where the storage pool includes a first storage system having a first storage controller, which receives inputoutput (IO) commands from host computers and provides first storage volumes to the host computers, and a second storage system including a second storage controller, which receives IO commands from host computers and provisions second storage volumes to the host computers, the method comprising:
adding a new storage system to the storage pool or removing one of the storage systems from the storage pool;
wherein upon adding the new storage system to the storage pool, instructing a storage controller of the new storage system to provide new storage volumes to the host computers, and controlling path setting between the new storage system and a storage system existing in the storage pool, and
wherein upon removing the one of the storage systems from the storage pool, instructing the storage pool to remove storage volumes of the removed one of the storage systems from the storage pool, and to remove a path between the removed one of the storage systems and another storage system in the storage pool, and
the method further comprising:
upon removing the one of the storage systems from the storage pool, controlling the one of the storage systems to unmount storage volumes provided to the one of the storage systems;
controlling the storage pool to re-mount the storage volumes from the one of the storage systems;
controlling the storage pool to unmount storage volumes provided by the storage controller of the one of the storage systems; and
controlling to remove the path to the removed one of the storage systems,
wherein the storage volumes unmounted from the removed one of the storage systems include physical storage volumes.
12. The non-transitory computer-readable medium according to claim 11, the method further comprising:
selecting to migrate a first storage volume to a second storage volume, or changing control from the second storage controller to the first storage controller against a storage media which is coupled to both the first and second storage controllers, based on a load requirement of the storage pool.
13. The non-transitory computer-readable medium according to claim 11, the method further comprising:
upon adding the new storage system to the storage pool, a storage controller of the new storage system provides storage volumes to the storage pool, controlling path setting to the new storage system from the host computers.
14. The non-transitory computer-readable medium according to claim 13, the method further comprising:
upon adding the new storage system to the storage pool, controlling the storage pool to provide storage volumes to the new storage system; and
controlling path setting to the storage pool from the host computers.
15. The non-transitory computer-readable medium according to claim 11, the method further comprising:
prior to removing the path to the removed one of the storage systems, selecting which of the storage systems in the storage pool that re-mount the storage volumes from the removed one of the storage systems, and
controlling the storage pool to provide the re-mounted physical storage volumes as one or more storage media.
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 screening for separating an inner protected area from a more accessible area comprising:
first and second spaced apart vertical supports,
each of said vertical supports having an upper and a lower support attachment member; and
a panel having an inner surface, an outer surface, and first and second parallel sides,
wherein the first side of said panel comprises an upper panel attachment member for attachment to said upper support attachment member of said first vertical support to form a first mated pair of upper attachment members,
wherein the second side of said panel comprises an upper panel attachment member for attachment to said upper support attachment member of said second vertical support to form a second mated pair of upper attachment members,
wherein the first side of said panel further comprises a lower panel attachment member for attachment to said lower support attachment member of said first vertical support to form a first mated pair of lower attachment members,
wherein the second side of said panel comprises a lower panel attachment member for attachment to said lower support attachment member of said second vertical support to form a second mated pair of lower attachment members,
said first mated pair of upper attachment members and said second mated pair of upper attachment members including at least one pivot pin wherein said panel is pivotable about said at least one of said mated pairs of upper attachment members while said first mated pair of lower attachment members and said second mated pair of lower attachment members remain unattached to each other,
at least one of said first mated pair of lower attachment members and said second mated pair of lower attachment members including a latch wherein the at least one mated pair of lower attachment members are latchable together to retain said panel to said vertical supports,
said latch including a cam for unlatching said latch wherein said cam is operable from said outer surface of said panel, and
said latch further including a lock for selectively locking and unlocking said latch between a locked condition wherein said cam is rendered inoperable, and an unlocked condition wherein said cam is operable,
said latch further including a latch pin and a mating attachment member comprising at least one cutout adapted to receive at least a portion of the latch pin when the at least one mated pair of lower attachment members is latched together,
said latch pin adapted to prohibit movement of said mating attachment member when the at least a portion of the latch pin is received by the at least one cutout and when said lock is in a locked condition.
2. The screening of claim 1 wherein said lock is only operable from said inner surface of said panel.
3. A screening of claim 1 wherein said lock is operable by a tool and said tool is useable only from said inner surface of said panel.
4. The screening of claim 1 wherein said cam is operable by a first tool and said lock is operable by a second tool that is different from said first tool.
5. The screening of claim 1 and further comprising said at least one of said first mated pair of lower attachment members and said second mated pair of lower attachment members including an indentation for receiving the mating attachment member, said indentation having diverging surfaces to form a mouth thereof, said mating attachment member having a body with parallel sides and adjacent said parallel sides, ramped surfaces wherein said ramped surfaces mate with said diverging surfaces to obstruct access to a tampering tool to said latch.
6. The screening of claim 1 wherein said cam is operable from said outer surface and said lock is operable only from said inner surface of said panel.
7. The screening of claim 6 wherein said cam is operable by a first tool and said lock is operable by a second tool that is different from said first tool.
8. A screening for separating an inner protected area from a more accessible area comprising
first and second spaced apart vertical supports, said first vertical support comprising a first upper support connector and a first lower support connector, said second vertical support comprising a second upper support connector and a second lower support connector;
a panel having an inner surface, an outer surface, and first and second parallel sides, said first parallel side comprising a first upper panel connector and a first lower panel connector, said second parallel side comprising a second upper panel connector and a second lower panel connector,
said panel between said first and second spaced apart vertical supports and attached thereto by 1) mating the first upper support connector and the first upper panel connector to provide a first mated pair of upper connectors, and 2) mating the second upper support connector and the second upper panel connector to provide a second mated pair of upper connectors,
said panel also attached between said first and second supports by 1) mating said first lower support connector and said first lower panel connector to provide a first mated pair of lower connectors and 2) mating said second lower support connector and said second lower panel connector to provide a second mated pair of lower connectors,
at least one of said first mated pair of upper connectors and said second mated pair of upper connectors including a pivot pin wherein said panel is pivotable about said pivot pin while said first mated pair of lower connectors and said second mated pair of lower connectors are unconnected,
at least one of said first mated pair of lower connectors and said second mated pair of lower connectors including a releasable latch for releasably retaining said panel to one of said first and second vertical supports, and
said latch including a lock for selectively locking and unlocking said latch, wherein said latch is unreleasable while in said locked condition and releasable in said unlocked condition,
said latch further including a latch pin and a mating attachment member comprising at least one cutout adapted to receive at least a portion of the latch pin when at least one of the first mated pair of lower connectors and second mated pair of lower connectors is latched together,
said latch pin adapted to prohibit movement of said mating attachment member when the at least a portion of the latch pin is received by the at least one cutout and when said lock is in a locked condition.
9. The screening of claim 8 and further comprising at least one of said first mated pair of lower connectors and said second mated pair of lower connectors including an indentation for receiving the mating connector, said indentation having diverging surfaces to form a mouth thereof, said mating attachment member having a body with parallel sides and adjacent said parallel sides, ramped surfaces wherein said ramped surfaces mate with said diverging surfaces to obstruct access to a tampering tool to said releasable latch.
10. The screening of claim 8 wherein said lock is only operable from said inner surface of said panel.
11. The screening of claim 8 wherein said lock is operable by a tool and said tool is useable only from said inner surface of said panel.
12. The screening of claim 8 wherein said releasable latch is operable by a first tool and said lock is operable by a second tool that is different from said first tool.
13. The screening of claim 8 wherein said releasable latch is operable from said outer surface and said lock is operable only from said inner surface of said panel.
14. The screening of claim 13 wherein said releasable latch is operable by a first tool and said lock is operable by a second tool that is different from said first tool.
15. A screening for separating an inner protected area from a more accessible area comprising
first and second spaced apart vertical supports, said first vertical support comprising a first upper support connector and a first lower support connector, said second vertical support comprising a second upper support connector and a second lower support connector,
a panel having an inner surface, an outer surface, and first and second parallel sides, said first parallel side comprising a first upper panel connector and a first lower panel connector, said second parallel side comprising a second upper panel connector and a second lower panel connector,
said panel between said first and second supports and attached thereto by 1) mating said first upper support connector and said first upper panel connector to provide a first mated pair of upper connectors, and 2) mating said second upper support connector and said second upper panel connector to provide a second mated pair of upper connectors,
said panel also attached between said first and second supports by 1) mating said first lower support connector and said first lower panel connector to provide a first mated pair of lower connectors, and 2) mating said second lower support connector and said second lower panel connector to provide a second mated pair of lower connectors,
the first mated pair of upper connectors and the second mated pair of upper connectors including pivot pins wherein said panel is pivotable about said pivot pins while 1) the first lower support connector and the first lower panel connector is unconnected and 2) the second lower support connector and the second lower panel connector is unconnected,
at least one of said first mated pair of lower connectors and said second mated pair of lower connectors including a releasable latch for releasably retaining said panel to at least one of said first and second vertical supports,
said latch including an indentation for receiving a mating attachment member, wherein said latch is unreleasable while in said locked condition and releasable in said unlocked condition,
said indentation having diverging surfaces to form a mouth thereof, and
said mating attachment member having a body with parallel sides and adjacent said parallel sides, ramped surfaces wherein said ramped surfaces mate with said diverging surfaces to obstruct access to a tampering tool to said releasable latch,
said latch including a lock for selectively locking and unlocking said latch, wherein said latch is unreleasable while in said locked condition and releasable in said unlocked condition,
said latch further including a latch pin, said mating attachment member having at least one cutout adapted to receive at least a portion of the latch pin when at least one of the first mated pair of lower connectors and second mated pair of lower connectors is latched together,
said latch pin adapted to prohibit movement of said mating attachment member when the at least a portion of the latch pin is received by the at least one cutout and when said lock is in a locked condition.
16. The screening of claim 15 wherein said lock is only operable from said inner surface of said panel.
17. The screening of claim 15 wherein said lock is operable by a tool and said tool is useable only from said inner surface of said panel.
18. The screening of claim 15 wherein said releasable latch is operable by a first tool and said lock is operable by a second tool that is different from said first tool.
19. The screening of claim 15 wherein said releasable latch is operable from said outer surface and said lock is operable only from said inner surface of said panel.