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Apr
20
answered KVM/QEMU: “Storage parameter error: directory is not managed on the remote host” when importing an existing image from a mounted drive
Apr
14
answered KVM - Access from an external computer to the Virtual Machine
Apr
14
comment KVM - Access from an external computer to the Virtual Machine
Are you using libvirt? You should be able to use virt-manager on the machine accessing the host to access the VM consoles.
Apr
7
comment Can't find logical volume when booting imported disk images in Xen guest
Not enough informaiton. What's guest distribution and version? Add rdshell (or rd.shell) to boot options. This should drop you into shell where you could try lvs to see if there are any errors in the output. lsblk to see what block devices are present. Run vgscan and see it that helps.
Apr
6
comment No w/s in iostat output even though wMB/s is high
Still waiting? Are your paths up? What does multipath -ll say?
Apr
5
answered Accessing linux guest OS filesystem in qcow2 image
Mar
30
awarded  Commentator
Mar
30
comment Can't delete LV (volume is used by another device)
Other option is there is a loopback device - check output of losetup -a. May be a duplicate of: unix.stackexchange.com/questions/15024/…
Mar
30
comment Can't delete LV (volume is used by another device)
Any chance a namespace mount was created by a process? Check if the device is anywhere is lsof output.
Mar
18
comment Is it possible RAID/LVM Stripe that can lose a disk/data but volume itself stays available?
This looks very much like what GlusterFS does.
Mar
16
comment Is it possible to extend the data device of an Thin Provision pool setted by device mapper?
What's the reason for not using LVM? It would take care of resizing for you (the dmeventd daemon using LVM specific plugins for resizing volumes, no DM-direct plugin) and keep track of volumes. One option is to try strace with LVM thin-pool, which will give you a clue how to extend DM device.
Mar
16
answered Is it possible RAID/LVM Stripe that can lose a disk/data but volume itself stays available?
Mar
11
revised What happens when you temporary lose a disk in LVM volume group?
added 157 characters in body
Mar
11
comment What happens when you temporary lose a disk in LVM volume group?
This is incorrect. In case of transient error it is likely there will be some lost data, but it is not such a disaster, see my answer.
Mar
11
answered What happens when you temporary lose a disk in LVM volume group?
May
21
awarded  Critic
May
21
comment LVM mirror with data and logs mirrored on same 2 devices
Simplest and wrong. One should not have to fiddle with partitions. Actually it is harmful having two partitions on single drive in one VG and creating RAID on top of that: LVM could create both data legs of the RAID device on that device and when it's gone it's gone. c4f4t0r's answer is the correct one.
May
21
awarded  Supporter
Dec
13
awarded  Yearling
Dec
13
awarded  Nice Answer