Promise Technology VESS A3340S Handleiding (243 Pagina's)

Handleiding

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Vess A Class Storage Appliance for Video Surveillance Promise Technology

Capacity= Species logical drive capacity. Can be specied in megabytes (mb), gigabytes (gb) or terabytes

(tb), up to 2 decimal places. If not specied, all available capacity is used for this logical drive.

Stripe= Species logical drive stripe size. Options include 64KB,128 KB, 256 KB, 512 KB, and 1024 KB.

If not specied, the default 64KB is used.

Sector= Species 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 specied, the default 512 B is used.

WritePolicy= Species logical drive write policy.

writethru Writes are not cached

writeback Writes are cached

ReadPolicy= Species 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. Species which controller the LD is preferred for LUN afnity. Valid

value is 1 or 2. If value is not specied, LUN afnity is auto balanced.

-c <array count> Species 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> Species 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 specied.

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