Using PVE 8.4. For LVM iSCSI there is an option for wiped removed volumes. Ideally it would use discard instead, but appears to use /usr/bin/cstream -i /dev/zero which I guess is ok as not all devices support discard (but many do). Unfortunately it also has a -t option that limits it to a ridiculously low speed of 10MB/sec. If it's going to default to something, it show be something a bit more sane, like 100x that. Is there a way to switch it to either use discard instead, or to remove the limit and/or change it to something reasonable?
[SOLVED] Wiped removed volumes painfully slow
- Thread starter jlauro
- Start date
I hope we're talking about the same thing now (saferemove) [0]? The speed can be changed, e.g., 50MB/s.
[0] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#pvesm_lvm_config
Code:
pvesm set <lvm-storagename> -saferemove_throughput -52428800[0] https://pve.proxmox.com/pve-docs/pve-admin-guide.html#pvesm_lvm_config
Yes, that appears to be what I was talking about. Thank you, that worked. I used:
Code:
pvesm set iSAN8V1 --saferemove_throughput 1048576000and it was able to wipe a vm with a 120GB vm in under 2 minutes, so that should be able to wipe a TB in 20 minutes instead of taking over a day.
I should read over some of those admin pages. There might be some other useful settings not exposed in the web interface.