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>Not quite. You can actually do a vgremove of the dead drive, and >typically recover any files that were completely confined to the >remaining disks/volume groups. >> this is bad and in fact your LVM controller may really >> hate you >Um... There is no such thing as an LVM controller. Its all done in >software by the kernel. Recovery from a broken disk, I would say depending on the drive condition but over all when i've seen drives die they die hard, some of the data is recoverable I'm sure but not all. And the controller I was talking about is the kernel module, obviously it's not in hardware. Perhaps I'm using the wrong word, I've always referred to the thing that governs the LVM's as the lvm controller. LVM's I would say are kinda neat, but to be honest I still haven't seen a case where they were needed. Only once did I see a case where the fact that they were used was a benefit and that was on an orical DB that had each of mounts broken up into their own LVM groups. Of course though, they were using huge amounts of space from a pool and basically shaved off stuff as it was needed, most other times i've seen it used as a "OOO look now I am using LVMs woot!" and I ask why and get back an answer like, well that was the default install. Oh sorry, one other time was when everyone in the office was using sun sparc 5 diskless work stations and all of our home drives were based on a concept like LVM but different, never did ask what it was called. It could grow and stuff though, but I don't know what it was. They are also hell if you want to ever do anything like ghost, or at least they were... I haven't done any market research like that for about a year. >I'd wager more like 50-50. I've seen plenty of 2U boxes that have 4 to 6 >drive bays and don't come with any RAID controller at all, let alone one >capable of RAID 5. I'm very surprised by this. Every low end rack comp i've seen that wasn't more then 3 years old has come with some form of raid, to the point where I can even get hardware raid on MB's for personal home comps. There were a bunch i've worked with that were true POS in every sense of the word, but they were EOL and their replacements had raid on board. Every single 4-6 HDD comp i've seen I think i've seen a built in raid controller capable of handling 5. If not then I highly recommend getting boxes that do in fact have hardware raid, if you can't then use software. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. _______________________________________________ Discuss mailing list [hidden email] http://lists.blu.org/mailman/listinfo/discuss
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