Re: LVM2
From: Jeffrey E. Hundstad (jeffrey.hundstad_at_mnsu.edu)
Date: 01/20/05
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Date: Thu, 20 Jan 2005 16:25:32 -0600 To: "Trever L. Adams" <tadams-lists@myrealbox.com>
XFS is an SGI project.
http://oss.sgi.com/
I've been using it for quite a while and am quite happy with it; it is
very fast and very fault tolerant. The only warning I'd like to give
about it is it seems that some Linux developers seem to have a bad taste
in their mouth when it comes to XFS; go figure.
-- jeffrey hundstad Trever L. Adams wrote: >It is for a group. For the most part it is data access/retention. Writes >and such would be more similar to a desktop. I would use SATA if they >were (nearly) equally priced and there were awesome 1394 to SATA bridge >chips that worked well with Linux. So, right now, I am looking at ATA to >1394. > >So, to get 2TB of RAID5 you have 6 500 GB disks right? So, will this >work within on LV? Or is it 2TB of diskspace total? So, are volume >groups pretty fault tolerant if you have a bunch of RAID5 LVs below >them? This is my one worry about this. > >Second, you mentioned file systems. We were talking about ext3. I have >never used any others in Linux (barring ext2, minixfs, and fat). I had >heard XFS from IBM was pretty good. I would rather not use reiserfs. > >Any recommendations. > >Trever > >P.S. Why won't an LV support over 2TB? > >S.P.S. I am not really worried about the boot and programs drive. They >will be spun down most of the time I am sure. > >On Thu, 2005-01-20 at 22:40 +0100, Norbert van Nobelen wrote: > > >>A logical volume in LVM will not handle more than 2TB. You can tie together >>the LVs in a volume group, thus going over the 2TB limit. Choose your >>filesystem well though, some have a 2TB limit too. >> >>Disk size: What are you doing with it. 500GB disks are ATA (maybe SATA). ATA >>is good for low end servers or near line storage, SATA can be used equally to >>SCSI (I am going to suffer for this remark). >> >>RAID5 in software works pretty good (survived a failed disk, and recovered >>another failing raid in 1 month). Hardware is better since you don't have a >>boot partition left which is usually just present on one disk (you can mirror >>that yourself ofcourse). >> >>Regards, >> >>Norbert van Nobelen >> >>On Thursday 20 January 2005 20:51, you wrote: >> >> >>>I recently saw Alan Cox say on this list that LVM won't handle more than >>>2 terabytes. Is this LVM2 or LVM? What is the maximum amount of disk >>>space LVM2 (or any other RAID/MIRROR capable technology that is in >>>Linus's kernel) handle? I am talking with various people and we are >>>looking at Samba on Linux to do several different namespaces (obviously >>>one tree), most averaging about 3 terabytes, but one would have in >>>excess of 20 terabytes. We are looking at using 320 to 500 gigabyte >>>drives in these arrays. (How? IEEE-1394. Which brings a question I will >>>ask in a second email.) >>> >>>Is RAID 5 all that bad using this software method? Is RAID 5 available? >>> >>>Trever Adams >>>-- >>>"They that can give up essential liberty to obtain a little temporary >>>safety deserve neither liberty nor safety." -- Benjamin Franklin, 1759 >>> >>>- >>>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >>>the body of a message to majordomo@vger.kernel.org >>>More majordomo info at http://vger.kernel.org/majordomo-info.html >>>Please read the FAQ at http://www.tux.org/lkml/ >>> >>> >>- >>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >>the body of a message to majordomo@vger.kernel.org >>More majordomo info at http://vger.kernel.org/majordomo-info.html >>Please read the FAQ at http://www.tux.org/lkml/ >> >> >> >-- >"Assassination is the extreme form of censorship." -- George Bernard >Shaw (1856-1950) > >- >To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html >Please read the FAQ at http://www.tux.org/lkml/ > > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
- Previous message: William Lee Irwin III: "Re: LVM2"
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