I/0 error

Elmar Stander

New Member
Apr 18, 2017
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So I know absolutely nothing about Linux / Proxmox etc (total newby), Windows admin that inherited a Proxmox Server with a couple of Windows Server VMs on it. I know that the version is very old and I dont know how to update without potentially loosing all the data on the box, I also do not have other hardware to transfer the vm's , just a backup of live data on a NAS

Problem is the VMs is becoming very slow, PVE Version is still 3,4

in syslog I keep seeing this errror

Aug 30 08:41:26 proxmox1 udevd[123401]: timeout: killing '/sbin/blkid -o udev -p -u noraid /dev/sr0' [184446]
Aug 30 08:41:27 proxmox1 udevd[123401]: timeout: killing '/sbin/blkid -o udev -p -u noraid /dev/sr0' [184446]
Aug 30 08:41:28 proxmox1 udevd[123401]: timeout: killing '/sbin/blkid -o udev -p -u noraid /dev/sr0' [184446]
Aug 30 08:41:28 proxmox1 udevd[123401]: '/sbin/blkid -o udev -p -u noraid /dev/sr0' [184446] terminated by signal 9 (Killed)
Aug 30 08:41:28 proxmox1 udevd[123401]: timeout '/lib/udev/vdev_id -d sr0'
Aug 30 08:41:28 proxmox1 kernel: sr 1:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
Aug 30 08:41:28 proxmox1 kernel: sr 1:0:0:0: [sr0] Sense Key : Medium Error [deferred]
Aug 30 08:41:28 proxmox1 kernel: sr 1:0:0:0: [sr0] Add. Sense: L-EC uncorrectable error
Aug 30 08:41:28 proxmox1 kernel: sr 1:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 00 00 00 00 02 00
Aug 30 08:41:28 proxmox1 kernel: end_request: I/O error, dev sr0, sector 0
Aug 30 08:41:28 proxmox1 kernel: Buffer I/O error on device sr0, logical block 0

To scared to restart the server, no one in my town knows the OS that can assist me