On Fri, Oct 5, 2018 at 11:51 AM <[email protected]> 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
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