Requirements for increasing THP V-VOL capacity
You can increase THP V-VOL capacity up to 59.9 TB. To notify the host that the THP V-VOL capacity
has been increased, make sure host mode option 40 is enabled. Processing differs as follows,
depending on the value of host mode option 40:
•
When host mode option 40 is not enabled, the host will not be notified that the THP V-VOL
capacity has been increased. Therefore, the THP V-VOL data has to be read again by the
host after the capacity is increased.
•
When host mode option 40 is enabled, the host is notified that the THP V-VOL capacity has
increased. If the operating system cannot recognize the value of capacity that was increased,
the THP V-VOL data has to be read again by your storage system.
The following requirements are important when increasing the THP V-VOL capacity:
•
The THP V-VOL to be increased is not shared with the HP XP7 Storage product that does not
allow increasing the THP V-VOL (See
“Increasing THP V-VOL capacity” (page 152)
).
•
The THP V-VOL is not undergoing LDEV formatting.
•
The capacity to be added to the THP V-VOL must be specified within the range indicated
below
LDEV Capacity
in the
Expand V-VOLs
window.
•
The pool related to THP V-VOLs to be increased is in any one of the following statuses:
Normal
◦
◦
Exceeding the subscription limit threshold
◦
In progress of pool capacity shrinking
CAUTION:
When increasing THP V-VOL capacity, do not perform the following operations.
When you perform these operations, do not increase THP V-VOL capacity.
•
Operations using Virtual LUN
•
Operations using Cache Residency
•
Creating THP V-VOLs
•
Restoring pools
•
Deleting THP V-VOLs
•
Operations to increase the THP V-VOL capacity in another instance of RAID Manager
•
Maintenance of your storage system
After increasing THP V-VOL capacity, refresh the display, then confirm that the THP V-VOL is
increased. If the THP V-VOL capacity is not increased, wait a while, refresh the display again, and
confirm that the THP V-VOL is increased. If you perform an operation without making sure that the
THP V-VOL is increased, operations may fail.
If either of the following operations is being performed, the THP V-VOL capacity might not be
increased:
•
Auto LUN
•
Configuration change of journal used by Continuous Access Journal
•
Quick Restore by Business Copy
Operating system and file system capacity
Operating systems and file systems when initializing a P-VOL will consume some Thin Provisioning
pool space. Some combinations will initially take up little pool space, while other combinations
will take as much pool space as the virtual capacity of the THP V-VOL.
66
Configuring thin provisioning
Содержание XP7
Страница 229: ...Select LDEVs window Available LDEVs table Description Item LDEV identifiers LDEV ID Create Resource Groups wizard 229 ...
Страница 303: ...Pools Volume tabs Pools Volume tabs 303 ...
Страница 378: ...Add LUN Paths wizard Select LDEVs window Available LDEVs table 378 LUN Manager GUI reference ...
Страница 381: ...Select Host Groups window Available Host Groups table Add LUN Paths wizard 381 ...