[ovirt-users] Re: iSCSI constantly reading from storage (about 8 Mbps) after connecting hosts to storage
On Wed, Oct 17, 2018 at 11:37:33PM +0300, Nir Soffer wrote: > - sanlock reads 1MiB from the logical volume "domain-uuid/ids" every 20 > seconds Every 20 seconds sanlock reads 1MB and writes 512 bytes to monitor and renew its leases in the lockspace. ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/PM6QOZ6LEJ4DFHSCU2CJGYHTSGY6NCW4/
[ovirt-users] Re: iSCSI constantly reading from storage (about 8 Mbps) after connecting hosts to storage
On Fri, Oct 5, 2018 at 11:51 AM wrote: > Hello again, > I created a storage domain. When I put that storage in "Maintenance", > iSCSI trafic drops to 0. When I activate the storage, iSCSI traffic raises > to about 7 or 8 Mbps constantly. The storage is empty, no VMs created yet. > The LUN is created Thin and Compressed in V7000. Any hint? > This may be the normal I/O done for cluster based locking, storage monitoring and storage mailbox. In any host in the cluster: - sanlock reads 1MiB from the logical volume "domain-uuid/ids" every 20 seconds (or 10 seconds, need to check sanlock source). - vdsm reads 4K from logical volume "domain-uuid/metadata" every 10 seconds - vdsm refreshes LVM metdata every 300 seconds, running "vgs" and "lvs" for every storage domain. - multipathd checks all LUNs every 20 seconds On the SPM additionally: - vdsm reads 10240 bytes from logical volume "domain-uuid/inbox" every 2 seconds Nir ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/V6CHBZZ4IIEGRY7EAGMUBPDFFOWAERKW/
[ovirt-users] Re: iSCSI constantly reading from storage (about 8 Mbps) after connecting hosts to storage
Hello again, I created a storage domain. When I put that storage in "Maintenance", iSCSI trafic drops to 0. When I activate the storage, iSCSI traffic raises to about 7 or 8 Mbps constantly. The storage is empty, no VMs created yet. The LUN is created Thin and Compressed in V7000. Any hint? Regards, Silvio ___ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-le...@ovirt.org Privacy Statement: https://www.ovirt.org/site/privacy-policy/ oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/PLJ6U45QFYEOF3L7FX5ALAMP5RNZMSBF/
