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The other reason why I hate gmail is that it, like Outlook, naturally top-posts... On 06/07/08 11:52, Mag Gam wrote: > With the RAID array I am planning to use RAID 5 so my data is still > protected. My confusion is going with RAID striping (picking the right > size). What does the controller manual say? > Also, Does the filesystem layout need to be specific when I do > striping? If I am using 128k stripes, should I start my filesystem on > 129k and end with max-(128+1k)? Huh? Do you mean partition layout? > > On Sat, Jun 7, 2008 at 12:38 PM, Damon L. Chesser <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > On Sat, 2008-06-07 at 11:15 -0500, Ron Johnson wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > > Hash: SHA1 > > > > On 06/07/08 07:27, Mag Gam wrote: > > > > > > I have a RAID controller with 256MB of on board cache and its > connected > > > to 12 500GB SATA disks. I am planning to create 2 RAID groups (6 > disks > > > each), but I don't know what is the optimal stripe size should be. > > > > That's very controler-specific. Read the manual. > > > > > Also, once I stripe on the RAID controller I am planning to use > LVM. Is > > > striping a good idea? What should I consider for the filesystem? > > > > Striping is a GREAT idea IFF you want serious speed, but don't care > > about your data. If one of the disks goes flaky, *all* the data on > > the stripeset goes poof. > > > > So, *never* use striping on a production server!! Unless you hate > > the company, are vindictive, and are about to leave. > > > > Otherwise, use RAID 0, 10, 0+1 or 5. > > > > If you make huge RAID sets, I don't see the purpose of LVM. OTOH, > > for one, if you make a bad partition choice. With LVM, you can shrink > one and grow the other as needed. > > > if you make 6 mirror sets, use LVM to make a 6 "device" unit. > > > > Also, Damon is correct about booting. In fact, I'd have a separate > > boot device. > > > > Lastly, to what media are you going to back all this data up? How > > frequently? > > > > - -- > > Ron Johnson, Jr. > > Jefferson LA USA > > To back up Ron's input: > > http://www.linuxjunkies.org/html/LVM-HOWTO.html#s8 it is a bit dated, > but the info is good. - -- Ron Johnson, Jr. Jefferson LA USA "Kittens give Morbo gas. In lighter news, the city of New New York is doomed." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFISuQsS9HxQb37XmcRAkkdAKCUKckxe2iRpevc854xClQrpO5E1gCgsPgZ eLOZoUGaCwWbrSJq/bebUVU= =NOR4 -----END PGP SIGNATURE----- -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
