我在Debian Wheezy服务器上使用rsnapshot.这是最近从挤压升级.自升级以来,我从小时cron作业中收到以下错误：
remote rm -rf /share/HDA_DATA/backup/rsnapshot/hourly.3 p1=-rf p2=/backup/rsnapshot/hourly.3/ remote cp -al /share/HDA_DATA/backup/rsnapshot/hourly.0 /share/HDA_DATA/backup/rsnapshot/hourly.1 p1=-al p2=/backup/rsnapshot/hourly.0 Logical volume "rsnapshot" successfully removed Logical volume "rsnapshot" successfully removed Unable to deactivate open raid5-dl-real (254:4) Failed to resume dl. ---------------------------------------------------------------------------- rsnapshot encountered an error! The program was invoked with these options: /usr/bin/rsnapshot hourly ---------------------------------------------------------------------------- ERROR: Removal of LVM snapshot Failed: 1280
正确备份了两个LVM卷并成功删除了逻辑卷“rsnapshot”,但随后它在lvm VG raid5中达到卷dl并看到无法停用raid5-dl-real.
我的lvm快照的名称叫做raid5 / rsnapshot. raid5-dl-real与卷名不对应 – 真实设备是/ dev / mapper / raid5-dl.
因此,如果这是dl卷本身,为什么lvm会尝试停用它？
请注意,这最初发生在一个完全不同的卷上,所以我从备份中删除了它.现在它已转移到这一个.
rsnapshot日志也不是很有启发性：
[16/Jul/2013:17:26:26] /sbin/lvcreate --snapshot --size 512M --name rsnapshot /dev/raid5/dl [16/Jul/2013:17:26:29] /bin/mount /dev/raid5/rsnapshot /mnt/lvm-snapshot [16/Jul/2013:17:26:32] chdir(/mnt/lvm-snapshot) [16/Jul/2013:17:26:32] /usr/bin/rsync -a --delete --numeric-ids --relative --delete-excluded . /backup/rsnapshot/hourly.0/dl/ [16/Jul/2013:17:27:57] rsync succeeded [16/Jul/2013:17:27:57] chdir(/root) [16/Jul/2013:17:27:57] /bin/umount /mnt/lvm-snapshot [16/Jul/2013:17:27:58] /home/share/scripts/rsnapshot_lvremove --force /dev/raid5/rsnapshot [16/Jul/2013:17:29:02] /usr/bin/rsnapshot hourly: ERROR: Removal of LVM snapshot Failed: 1280 [16/Jul/2013:17:29:02] rm -f /var/run/rsnapshot.pid
有任何想法吗？
更新 – 这刚刚开始在一个完全不同的服务器上发生.相同的LVM问题.
我尝试过的一件事是将lvremove命令重定向到脚本：
#!/bin/bash sync sleep 600 ls /dev/mapper/raid5-*-real for i in /dev/mapper/raid5-*-real; do /sbin/dmsetup remove $i ; done /sbin/lvremove --debug "$@"
所以这个同步,睡了一会儿,然后在尝试lvremove之前删除任何-real设备映射.
即便在所有这些之后,删除通常也会失败.这是rsnapshot的输出.请忽略错误的一部分,虽然其中一个卷上存在问题,但直到稍后lvremove失败：
remote cp -al /share/HDA_DATA/backup/rsnapshot/hourly.0 /share/HDA_DATA/backup/rsnapshot/hourly.1 p1=-al p2=/backup/rsnapshot/hourly.0 One or more specified logical volume(s) not found. /dev/mapper/raid5-crypt-real /dev/mapper/raid5-db-real device-mapper: remove ioctl on raid5-crypt-real Failed: No such device or address Command Failed device-mapper: remove ioctl on raid5-db-real Failed: Device or resource busy Command Failed Logical volume "rsnapshot" successfully removed One or more specified logical volume(s) not found. /dev/mapper/raid5-crypt-real /dev/mapper/raid5-db-real /dev/mapper/raid5-db--var-real device-mapper: remove ioctl on raid5-crypt-real Failed: No such device or address Command Failed device-mapper: remove ioctl on raid5-db-real Failed: No such device or address Command Failed device-mapper: remove ioctl on raid5-db--var-real Failed: Device or resource busy Command Failed Logical volume "rsnapshot" successfully removed One or more specified logical volume(s) not found. /dev/mapper/raid5-crypt-real /dev/mapper/raid5-db-real /dev/mapper/raid5-db--var-real device-mapper: remove ioctl on raid5-crypt-real Failed: Device or resource busy Command Failed device-mapper: remove ioctl on raid5-db-real Failed: No such device or address Command Failed device-mapper: remove ioctl on raid5-db--var-real Failed: No such device or address Command Failed /dev/raid5/rsnapshot: read Failed after 0 of 4096 at 42949607424: Input/output error /dev/raid5/rsnapshot: read Failed after 0 of 4096 at 42949664768: Input/output error /dev/raid5/rsnapshot: read Failed after 0 of 4096 at 0: Input/output error /dev/raid5/rsnapshot: read Failed after 0 of 4096 at 4096: Input/output error Logical volume "rsnapshot" successfully removed One or more specified logical volume(s) not found. /dev/mapper/raid5-crypt-real /dev/mapper/raid5-db-real /dev/mapper/raid5-db--var-real /dev/mapper/raid5-dl-real device-mapper: remove ioctl on raid5-crypt-real Failed: No such device or address Command Failed device-mapper: remove ioctl on raid5-db-real Failed: No such device or address Command Failed device-mapper: remove ioctl on raid5-db--var-real Failed: No such device or address Command Failed device-mapper: remove ioctl on raid5-dl-real Failed: Device or resource busy Command Failed Unable to deactivate open raid5-dl-real (254:25) Failed to resume dl. ---------------------------------------------------------------------------- rsnapshot encountered an error! The program was invoked with these options: /usr/bin/rsnapshot hourly ---------------------------------------------------------------------------- ERROR: Removal of LVM snapshot Failed: 1280
解决方法
在这可以帮助任何人的情况下,我遇到了
Debian bug id 659762 report中描述的问题.
我使用dmsetup信息确定了处于挂起状态的卷,并使用dmsetup resume重新激活它这解锁了LVM系统.
