IBM Flex System V7000 Expansion Enclosure 4939H29 ユーザーズマニュアル
製品コード
4939H29
8068ch02-HW Intro.fm
Draft Document for Review January 29, 2013 12:52 pm
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IBM Flex System V7000 Storage Node Introduction and Implementation Guide
An IBM Flex System V7000 Storage Node is mainly intended to be a scalable, internal
storage system, to support the internal compute nodes of the IBM Flex System. When
needed, it can be expanded in its capacity by attaching external IBM Storwize V7000
expansion enclosures to its SAS2 chain. Both the 2076-212 and the 2076-224 model of the
Storwize V7000 expansions are supported.
storage system, to support the internal compute nodes of the IBM Flex System. When
needed, it can be expanded in its capacity by attaching external IBM Storwize V7000
expansion enclosures to its SAS2 chain. Both the 2076-212 and the 2076-224 model of the
Storwize V7000 expansions are supported.
The control enclosure can support a combination of up to nine expansion enclosures using a
combination of internal IBM Flex System V7000 Expansion Enclosures (max 2)and external
IBM Storwize V7000 Expansion Enclosures (max 9) connected through the SAS2 connection
on each of the control canisters. With the additional expansions you are capable of up to 240
disks drives; or a maximum capacity of 348TB per control enclosure.
combination of internal IBM Flex System V7000 Expansion Enclosures (max 2)and external
IBM Storwize V7000 Expansion Enclosures (max 9) connected through the SAS2 connection
on each of the control canisters. With the additional expansions you are capable of up to 240
disks drives; or a maximum capacity of 348TB per control enclosure.
2.3.1 IBM Flex System V7000 Storage Node capabilities
For a complete and updated list of IBM Flex System V7000 Storage Node configuration limits
and restrictions, see the following address:
and restrictions, see the following address:
2.3.2 IBM Flex System V7000 Storage Node functions
The following functions are available with IBM Flex System V7000 Storage Node:
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Thin provisioning (No license required)
Traditional fully allocated volumes allocate real physical disk capacity for an entire volume
even if that capacity is never used. Thin-provisioned volumes allocate real physical disk
capacity only when data is written to the logical volume.
even if that capacity is never used. Thin-provisioned volumes allocate real physical disk
capacity only when data is written to the logical volume.
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Volume mirroring (No license required)
Provides a single volume image to the attached host systems while maintaining pointers to
two copies of data in separate storage pools. Copies can be on separate disk storage
systems that are being virtualized. If one copy is failing, IBM Flex System V7000 Storage
Node provides continuous data access by redirecting I/O to the remaining copy. When the
copy becomes available, automatic re-synchronization occurs.
two copies of data in separate storage pools. Copies can be on separate disk storage
systems that are being virtualized. If one copy is failing, IBM Flex System V7000 Storage
Node provides continuous data access by redirecting I/O to the remaining copy. When the
copy becomes available, automatic re-synchronization occurs.
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FlashCopy (included with the base IBM Flex System V7000 Storage Node license)
Provides a volume level point-in-time copy function for any storage being virtualized by
IBM Flex System V7000 Storage Node. This function is designed to create copies for
backup, parallel processing, testing, and development, and have the copies available
almost immediately.
IBM Flex System V7000 Storage Node. This function is designed to create copies for
backup, parallel processing, testing, and development, and have the copies available
almost immediately.
IBM Flex System V7000 Storage Node includes the following FlashCopy functions:
– Full / Incremental copy
This function copies only the changes from either the source or target data since the
last FlashCopy operation and is designed to enable completion of point-in-time online
backups much more quickly than using traditional FlashCopy.
last FlashCopy operation and is designed to enable completion of point-in-time online
backups much more quickly than using traditional FlashCopy.
– Multitarget FlashCopy
IBM Flex System V7000 Storage Node supports copying of up to 256 target volumes
from a single source volume. Each copy is managed by a unique mapping and, in
general, each mapping acts independently and is not affected by other mappings
sharing the source volume.
from a single source volume. Each copy is managed by a unique mapping and, in
general, each mapping acts independently and is not affected by other mappings
sharing the source volume.
– Cascaded FlashCopy