Re: [linux-lvm] Maximum address used by a virtual disk on a thin pool.
Dne 13. 06. 19 v 21:54 Gionatan Danti napsal(a): Il 13-06-2019 18:05 Ilia Zykov ha scritto: Hello. Tell me please, how can I get the maximum address used by a virtual disk (disk created with -V VirtualSize). I have several large virtual disks, but they use only a small part at the beginning of the disk. For example: # lvs LV VG Attr LSize Pool Origin Data% mylvm CVG Vwi-aot--- 100,00g fastheap 7,13 Please advise me how to determine from which address the virtual disk did not allocate real disk space? And all the data read from addresses greater than this address will be exactly zeros. Or maybe, how can I get map of the used chunks of disk? Thanks. Maybe thin_dump[1] can help you? Regards. [1] https://linux.die.net/man/8/thin_dump Hi There is even better tool that can expose in 'great detail' ownership of individual thin-pool chunks for each thin volume - if that's what you are looking for. See 'man thin_ls' Regards Zdenek ___ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
Re: [linux-lvm] Maximum address used by a virtual disk on a thin pool.
Il 13-06-2019 18:05 Ilia Zykov ha scritto: Hello. Tell me please, how can I get the maximum address used by a virtual disk (disk created with -V VirtualSize). I have several large virtual disks, but they use only a small part at the beginning of the disk. For example: # lvs LV VG Attr LSize Pool Origin Data% mylvm CVG Vwi-aot--- 100,00g fastheap7,13 Please advise me how to determine from which address the virtual disk did not allocate real disk space? And all the data read from addresses greater than this address will be exactly zeros. Or maybe, how can I get map of the used chunks of disk? Thanks. Maybe thin_dump[1] can help you? Regards. [1] https://linux.die.net/man/8/thin_dump -- Danti Gionatan Supporto Tecnico Assyoma S.r.l. - www.assyoma.it email: g.da...@assyoma.it - i...@assyoma.it GPG public key ID: FF5F32A8 ___ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
[linux-lvm] Maximum address used by a virtual disk on a thin pool.
Hello. Tell me please, how can I get the maximum address used by a virtual disk (disk created with -V VirtualSize). I have several large virtual disks, but they use only a small part at the beginning of the disk. For example: # lvs LV VG Attr LSize Pool Origin Data% mylvm CVG Vwi-aot--- 100,00g fastheap7,13 Please advise me how to determine from which address the virtual disk did not allocate real disk space? And all the data read from addresses greater than this address will be exactly zeros. Or maybe, how can I get map of the used chunks of disk? Thanks. ___ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
