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Vess A6120 Storage Server Appliance Promise Technology
Capacity= Species logical drive capacity. Can be specied in megabytes (mb), gigabytes (gb) or
terabytes (tb), up to 2 decimal places. If not specied, all available capacity is used for this logical
drive.
Stripe= Species logical drive stripe size. Options include 64KB,128 KB, 256 KB, 512 KB, and
1024 KB. If not specied, the default 64KB is used.
Sector= Species logical drive sector size. Options include 512 B, 1 KB, 2 KB, and 4 KB. Sector
size cannot exceed Stripe size. Auto-adjusted not to exceed the maximum supported sector size of
the controller. If not specied, the default 512 B is used.
WritePolicy= Species logical drive write policy.
writethru Writes are not cached
writeback Writes are cached
ReadPolicy= Species logical drive read policy.
readahead Reads extra data to help reduce read times of sequential data.
readcache Caches reads the data in case the same request is made again.
nocache No caching algorithm.
Axle= A member element when creating a RAID10 or RAID50 or RAID60.
RAID10 have 2 axles, RAID50 and RAID60 may have up to 16 axles with up to 16 drives per axle.
PreferredCtrlId= Subsystems only. Species which controller the LD is preferred for LUN afnity.
Valid value is 1 or 2. If value is not specied, LUN afnity is auto balanced.
-c <array count> Species the number of arrays to give a summary of when used with the
-a list option. For example ‘array -a list -c3’ will give a summary for the rst 3 arrays on that
controller.
<Ld count> Species the number of logical drives to be created with the -a add option.
With the -c option, all the logical drives have same settings but only one -l option=value can be
specied.
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