[ngw] GW651 RAID 5 or RAID 10 perfomance on SAN
randygrein at comcast.net
Fri Jul 29 13:20:41 UTC 2005
Interesting - I've found no vendor making this claim and the general
literature says otherwise; in fact if you set up software spanning or
mirroring under netware it will perform reads in parallel - as far
back as Netware 2.15. Are you saying you've found a hardware RAID
vendor that can't get it right?
I recently tested RAID 5 against RAID 1,0, and while I had limited
time and tools the 1,0 configuration was as fast in reads, and much
faster on write operations.
Randy Grein, Master CNE, CCNA
On Jul 29, 2005, at 5:23 AM, Eric Rothweiler wrote:
> Not quite accurate. Raid 5 will give better read performance in most
> cases because each spindle can be seeking the different sectors
> simultaneously. In Raid 0 or 1 each seek in done is serial instead of
> On 7/29/05, Randy Grein <randygrein at comcast.net> wrote:
>> One small point is that all RAID
>> levels will have the same read performance, the difference is write
>> performance which will vary depending on the RAID level and write
>> size. If anyone is interested in reviewing, drop me a line.
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