I would actually keep DB and logs separate, avoid putting the DB on RAID-5 due to its high write penalty. We have our DB on 15K RPM SAS disks in 3x 4-disk RAID-10 sets. The logs we keep on RAID-1 collocated with the OS, since it's pretty low load and all sequential I/O.
On Wed, Jan 27, 2016 at 11:02:25AM -0500, Zoltan Forray wrote: > The box came with 6-6TB drives and 4-slots empty. We moved 6-600GB SAS > drives into the empty slots and created another RAID5 array of ~1.7TB for > additional storage. Sounds like maybe we should move the DB/logs/archlogs > to it? -- -- Skylar Thompson (skyl...@u.washington.edu) -- Genome Sciences Department, System Administrator -- Foege Building S046, (206)-685-7354 -- University of Washington School of Medicine
