LVM
in [Debian]
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From: Gerald C.Catling on 14 Jun 2010 18:30 Hi Boyd, At what point and how do I insert -P in the lvm system? Many thanks to all respondents, and NO I did not have a backup, no drive big enough to hold all data. Gerald -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/201006150827.32458.gcsgcatling(a)bigpond.com
From: Andrew Sackville-West on 14 Jun 2010 20:30 On Tue, Jun 15, 2010 at 08:27:32AM +1000, Gerald C.Catling wrote: > Hi Boyd, > At what point and how do I insert -P in the lvm system? man lvchange > Many thanks to all respondents, and NO I did not have a backup, no drive big > enough to hold all data. um... really? I've heard all sorts of reasons for not making backups, but that is *definitely* not a valid reason. (hint, there is no valid reason other than "The loss of this data does not matter", which suggests the questions "then why do you have the data?"). There are many many ways to make take backups beyond having a disk big enough to hold the data. .02 A
From: Gerald C.Catling on 15 Jun 2010 04:00 On Tuesday, June 15, 2010 10:25:56 am Andrew Sackville-West wrote: > On Tue, Jun 15, 2010 at 08:27:32AM +1000, Gerald C.Catling wrote: > > Hi Boyd, > > At what point and how do I insert -P in the lvm system? > > man lvchange > > > Many thanks to all respondents, and NO I did not have a backup, no drive > > big enough to hold all data. > > um... really? I've heard all sorts of reasons for not making backups, > but that is *definitely* not a valid reason. (hint, there is no valid > reason other than "The loss of this data does not matter", which > suggests the questions "then why do you have the data?"). > > There are many many ways to make take backups beyond having a disk big > enough to hold the data. > > .02 > > A Hi Andrew, One good reason is that I am 73 coming on 4 and pensions are not sufficient to support my buying larger HDD's. I do appreciate the effort you and others have put into your replies. But it does seem to me that all the data is lost! Thanks again Gerald -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/201006151556.51510.gcsgcatling(a)bigpond.com
From: Stan Hoeppner on 15 Jun 2010 06:00 Boyd Stephen Smith Jr. put forth on 6/14/2010 10:45 AM: > On Monday 14 June 2010 03:11:56 Gerald C.Catling wrote: >> Hi Guy's, >> I am not a Debian user but I have seen references to LVM here. >> I have 3 drives LVM'd to give me 1.3TB of storage space on my server. >> The first drive of this set has died. > > Mostly, when one of your physical volumes is irrecoverably lost, so is any > logical volume whose logical extents corresponded to one of the lost physical > extents. This is why one should only use LVM on top of real hardware or software RAID or a big SAN LUN. Using LVM for what most in the IT world have typically called "disk spanning", which has been around for over 2 decades, is a recipe for trouble in the absence of a good backup/recovery procedure, as the OP has unfortunately discovered. If the OP truly needs 1.3 TB of usable space, I'd highly recommend acquiring two of these: http://www.newegg.com/Product/Product.aspx?Item=N82E16822136592 and mirroring them with mdadm. There are many guides available for accomplishing this. If 500GB is really all that's needed, one can accomplish the same goals for half the cost with the 500GB WD Blue from the same etailer above. -- Stan -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4C174D4A.2010206(a)hardwarefreak.com
From: Stan Hoeppner on 15 Jun 2010 06:40
Andrew Sackville-West put forth on 6/14/2010 7:25 PM: > There are many many ways to make take backups beyond having a disk big > enough to hold the data. > > .02 tar and parallel bzip2 would cover most of the journey for the OP, assuming he's got at minimum a dual core CPU or an older SMP box, available scratch space, a DVD burner, and enough acumen to figure out how to use these together to achieve his backup goals (which he should already be forming given his recent experience). http://compression.ca/pbzip2/ -- To UNSUBSCRIBE, email to debian-user-REQUEST(a)lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmaster(a)lists.debian.org Archive: http://lists.debian.org/4C175649.8060501(a)hardwarefreak.com |