[GLLUG] Raid 0
Andy Lee
alee at courts.mi.gov
Wed May 3 13:58:16 EDT 2006
You won't gain any performance by changing from raid 10 to raid 0 (maybe lose performance?..) All you will accomplish is doubling your volume.
>>> Mark Szidik/mlc <SzidikM at mlcnet.org> 05/03/06 1:52 PM >>>
I have a Dell 2850 server that is using the embedded raid controller. It's
setup with RAID 10 (striped, mirrored). I am willing to forego the safety
of the mirror if I can increase performance by going to just raid 0 across
4 disks instead of the current 2. Anybody know if this will improve
performace a lot? I am running a large PostgreSQL database on the box.
Additionally, Does the raid 1 (mirror) cause data to be sent out the SCSI
bus twice, or is there a trick that it uses to write data to two disks at
once?
There are 4 Seagate 15K 36GB drives. SCSI 320 bus - single channel.
Thanks,
---
Mark Szidik, CIO
Michigan Library Consortium
1407 Rensen Street, Suite 1, Lansing, MI 48910-3657
Ph:800.530.9019 x117 Fax:517.492.3881
Ph:517.492.3817
MLC - Partnerships. Solutions. Excellence.
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