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Frank Steinmetzger wrote: |
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> Am Wed, Jul 07, 2021 at 01:08:55PM -0500 schrieb Dale: |
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> |
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>> root@fireball / # blkid | grep dde669 |
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>> /dev/mapper/8tb: LABEL="8tb-backup" |
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>> UUID="0277ff1b-2d7c-451c-ae94-f20f42dde669" BLOCK_SIZE="4096" TYPE="ext4" |
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>> root@fireball / # ls /dev/disk/by-uuid | grep dde669 |
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>> 0277ff1b-2d7c-451c-ae94-f20f42dde669 |
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>> root@fireball / # |
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> I followed this thread, and couldn’t remember ever having the same issue. |
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> But today I was bitten: It’s a 3 TB external USB drive from Intenso. |
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> |
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> Yesterday I was in the middle of a backup (it’s my main backup drive), but I |
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> had to sleep and so sent the machine into standby. I had to start the PC |
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> again a few minutes later in order to unmount an sshfs of it on another |
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> machine, and sent it right back to sleep. |
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> |
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> Just now I switched the PC back on and the drive was gone and off (USB |
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> enclosures tend to spin down the drive when USB disconnects). So I pulled |
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> the USB cable and plugged it back in for the drive to start and be |
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> rediscovered. That worked and I resumed the backup, but this enclosure has |
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> the nasty habit of sometimes intermittently disconnecting on its own. |
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> |
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> Its device was not gone (it usually disconnects for a tiny moment and then |
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> comes back, probably a USB issue), so I just tried to open it again in |
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> Dolphin, which gave me: |
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> Error unlocking /dev/sdd1: Failed to activate device: File exists |
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> |
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> $ blkid | grep luks |
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> /dev/mapper/luks-6a55a712-773e-4cd8-9776-fc9b6f39a998: LABEL="backup" UUID="50ed9519-cd9c-4d11-b78a-9f057b089362" BLOCK_SIZE="4096" TYPE="ext4" |
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> |
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> $ ls -l /dev/disk/by-uuid/6a55a* |
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> lrwxrwxrwx 10 root 2021-07-25 21:34 /dev/disk/by-uuid/6a55a712-773e-4cd8-9776-fc9b6f39a998 -> ../../sdd1 |
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> |
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> $ lsblk |
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> NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS |
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> […] |
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> sdd 8:48 0 2,7T 0 disk |
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> └─sdd1 8:49 0 2,7T 0 part |
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> |
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> $ mount | grep -E 'luks|sdd' |
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> [nothing] |
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> |
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> $ cryptsetup luksClose luks-6a55a712-773e-4cd8-9776-fc9b6f39a998 |
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> Device luks-6a55a712-773e-4cd8-9776-fc9b6f39a998 is still in use. |
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> |
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> I don’t quite like this bad habit of the enclosure, but a 3 TB drive is a 3 |
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> TB drive. I just looked at smart to see how old it is, because it has only |
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> 350 hours of power-on time, but it must be at least 5 years old. And |
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> smartctl tells me there is a firmware update available! (for Windows, Mac |
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> and—lo and behold—a bootable ISO, let’s hope it works with USB sticks). |
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> |
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> Perhaps this fixes the issue. Dale, maybe you should look for the same. |
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> |
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|
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|
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That's interesting. I have two different drives, can't recall but may |
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be the same brand. While using UUID to mount it, it would either fail |
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every time or in the case of the smaller drive, fail on occasion but not |
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every time. The smaller drive worked most of the time but after a |
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couple failures, I switched to mounting by label. Since switching both |
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drives to mount by labels, neither has had a single issue. My backups |
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last time went without a hitch. I was actually planning to post that |
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after my next backup if nothing failed. As it is, I think switching to |
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labels has fixed it. |
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|
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I've tried external drives connected by USB before and hated them. Slow |
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when they do work and buggy at that. I've had more drives go bad when |
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using USB enclosures than I've ever had on IDE or (e)SATA. I've had two |
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drives fail after years of service that were IDE or SATA. I have three |
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drives that are bricks and all of them were in USB enclosures and far |
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young to die. I paid more for eSATA external enclosures and have had no |
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problems with drives going dead yet. All of them have far surpassed the |
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drives in the USB enclosures. Heck, this 'in use' problem is the first |
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issue I recall having. Fast too. The SMR drive not so much but the CMR |
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drive is as fast as what is in my system connected to the mobo itself. |
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|
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The thing about this, I have no idea why switching to labels works. The |
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UUID, label and such are nothing but links to the real device. It |
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should make no difference at all which one is used to mount with. I'm |
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no guru or anything but it just shouldn't matter. |
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|
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Bad thing is, I don't use anything Microsoft here. Can a drive's |
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firmware be updated on Linux? I think my drives are either Seagate or |
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WD. I tend to stick with those two, unless it is a really awesome |
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deal. I've never updated the firmware on a drive before. I have my |
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mobo and my router but not a drive. |
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|
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Dale |
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|
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:-) :-) |