Re: How many drives are bad?

2008-02-21 Thread pg_mh
On Thu, 21 Feb 2008 13:12:30 -0500, Norman Elton [EMAIL PROTECTED] said: [ ... ] normelton Assuming we go with Guy's layout of 8 arrays of 6 normelton drives (picking one from each controller), Guy Watkins proposed another one too: «Assuming the 6 controllers are equal, I would make 3 16

Re: raid 10 su, sw settings

2007-12-31 Thread pg_mh
On Sun, 30 Dec 2007 19:00:39 -0500, Brad Langhorst [EMAIL PROTECTED] said: [ ... VMware virtual disks over RAID ... ] brad - 4 disk raid 10 brad - 64k stripe size Stripe size or chunk size? Try reducing the chunk size if that is the chunk size, and applications in the VM do short reads or

Re: Raid over 48 disks

2007-12-25 Thread pg_mh
On Wed, 19 Dec 2007 07:28:20 +1100, Neil Brown [EMAIL PROTECTED] said: [ ... what to do with 48 drive Sun Thumpers ... ] neilb I wouldn't create a raid5 or raid6 on all 48 devices. neilb RAID5 only survives a single device failure and with that neilb many devices, the chance of a second