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StorNext File System Tuning
The Metadata Controller System
10 StorNext File System Tuning Guide
StripeBreadth 256K
MultiPathMethod Rotate
Node CvfsDisk6 0
Node CvfsDisk7 1
[StripeGroup MetaFiles]
Status UP
MetaData Yes
Journal No
Exclusive Yes
Read Enabled
Write Enabled
StripeBreadth 256K
MultiPathMethod Rotate
Node CvfsDisk0 0
[StripeGroup JournFiles]
Status UP
Journal Yes
MetaData No
Exclusive Yes
Read Enabled
Write Enabled
StripeBreadth 256K
MultiPathMethod Rotate
Node CvfsDisk1 0
Affinities
Affinities are another stripe group feature that can be very beneficial.
Affinities can direct file allocation to appropriate stripe groups
according to performance requirements. For example, stripe groups can
be set up with unique hardware characteristics such as fast disk versus
slow disk, or wide stripe versus narrow stripe. Affinities can then be
employed to steer files to the appropriate stripe group.
For optimal performance, files that are accessed using large DMA-based
I/O could be steered to wide-stripe stripe groups. Less performance-
critical files could be steered to slow disk stripe groups. Small files could
be steered to narrow-stripe stripe groups.
Example:
[stripeGroup AudioFiles]
Status UP
Exclusive Yes ##These two lines set Exclusive
stripeGroup ##