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Originally Posted by
king_hippo
1. What type of storage are you using.
Penguin x8dtn, 24 1tb disks
Can find anything about this setup. Do you have specs/a link ?
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2. What type of disks
sata
Definitely not optimal for the amount of files or the access patterns you describe.
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3. If using a controller based array, what you optimized for sequential or random operation.
Sounds like it should be random optimized, but depends on the array or RAID controller and its capabilities whether or not this a selectable.
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4. Will you mirror on-host or using hardware RAID
controller based raid 10. six disks per raid set
Seems like a reasonable choice.
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4. What is your storage block size.
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5. What is the average size of your writes
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dunno, guess is a few meg. No more than 16m. These are email attachments
That is the size of the objects not the size of the writes. iostats for the file systems would be good here.
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6. What is the breakdown of reads/writes
not sure
This might be essential information, depends on the pattern, but caching correctly might improve performance drastically.
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9. How many files per directory do you have ( files includes sub-directories) in the largest directory.
This is in all probability your main bottleneck, more file systems or directories with fewer files could improve this.