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Vess R2000 Series Product Manual
Promise Technologies
WritePolicy=
Used to specify the write policy for the logical drive.
writethru
Writes are not cached
writeback
Writes are cached
ReadPolicy=
Used to specify read policy for the logical drive.
readahead
Reads extra data to reduce read times for sequential data.
readcache
Caches the reads in case the same request is made again.
nocache
No read cache.
parity=
Used to specify the method of parity distribution for RAID 5, 50, 6,
and 60.
left
Left asymmetric.
right
Right asymmetric.
Axle=
RAID 50, 3 to 32 drives per axle.
RAID 60, 4 to 32 drives per axle.
Range is 2 to 16 axles.
codec=
Used to specify the codec scheme for RAID 6 and 60.
p+q
q+q
PreferredCtrlId=
Used to specify which controller the LD is preferred for LUN
affinity. Valid value is 1 or 2. If value is not specified, LUN affinity
will be auto balanced.
PerfectRebuild=
Used to specify which logical drives supply to Perfect Rebuild.
enable
(Default)The maximum amount of logical drive which support
perfect rebuild is 30. If you select perfectrebuild=enable, only
sectors where write changes occurred are rebuilt.
disable
Perfect rebuild will not supply to this logical drive.
-c <array count>
Specifies the number of arrays to give a summary of when used
Summary of Contents for R2000 SERIES
Page 1: ...ProductManual ...
Page 2: ...Vess R2000 Series Product Manual Version 2 0 2014 PROMISE Technology Inc All Rights Reserved ...
Page 83: ...Vess R2600i with SAS JBOD expansion 56 Vess R2000 Series Product Manual Promise Technologies ...
Page 151: ...124 Vess R2000 Series Product Manual Promise Technologies Topology display ...
Page 302: ...275 Product Manual NAS Function and Management Redundancy with port configuration ...
Page 704: ... 2014 PROMISE Technology Inc All Rights Reserved ...