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Vess A6120 Storage Server Appliance
Capacity= Specifies logical drive capacity. Can be specified in megabytes (mb), gigabytes (gb) or
terabytes (tb), up to 2 decimal places. If not specified, all available capacity is used for this logical
drive.
Stripe=
Specifies logical drive stripe size. Options include 64KB,128 KB, 256 KB, 512 KB, and
1024 KB. If not specified, the default 64KB is used.
Sector=
Specifies 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 specified, the default 512 B is used.
WritePolicy=
Specifies logical drive write policy.
writethru
writeback
ReadPolicy=
Specifies logical drive read policy.
readahead
readcache
nocache
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. Specifies which controller the LD is preferred for LUN affinity.
Valid value is 1 or 2. If value is not specified, LUN affinity is auto balanced.
-c <array count> Specifies 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 first 3 arrays on that
controller.
<Ld count>
Specifies 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
specified.
Writes are not cached
Writes are cached
Reads extra data to help reduce read times of sequential data.
Caches reads the data in case the same request is made again.
No caching algorithm.
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Promise Technology
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