-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Douglas A. Tutty wrote:
> Lets say you have an old server with 12 disks on two scsi busses an > you're using mdadm (rather than a hardware raid card). Lets say that > all 12 drives are in one array (just to make life interesting). One of > those disks dies. > > mdadm would have assembed the array (before the failure) and you can get > a list of /dev/sd? devices that make up the array. When a drive fails, > you get a message, presumably telling you that e.g. /dev/sde has failed. > How do you know which drive has failed so that you can swap it? Hmmm. That's something I haven't hit yet. udev's a wonderful idea, and it almost works. If the installer (software or wetware) created vendor / model / serial# rules for the drives it works with, that would help a lot. There are just too many places in *nix that expect at least some of the device names to hold still. Here's another issue: There's a DLT drive in my LAN server. mt, the mag tape utility, defaults to a device name "tape" for it's target. But udev creates a directory in /dev with that name, so I have to specify a target for mt. This isn't a major problem -- I'd already done that in my scripts anyway -- but it's another little flaw. I created an early, local udev rule to create the SYMLINK, but the only reason it works is that the kernel refuses when udev asks it to create the directory (because /dev/tape already exists). - -- Glenn English [EMAIL PROTECTED] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.8 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkkgRpUACgkQ04yQfZbbTLYesQCfbOpLxHfXxQilkigI9hzqfKVg GEEAnA9V2EJ3RyXmXh0YKR3skPdiOO8H =5exk -----END PGP SIGNATURE----- -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
