I'm having trouble increasing my reservations on some ZFS filesystems, although there seems to be enough space in the zpool, and no constraints on the parent device.
Note that I'm using refreservation instead of reservation, so I'm not constrained by the reservation on the parent device (or so I read it).
Output follows:
Code:
# Looks like plenty of space free in zpool "epool":
[root@host epool]# zpool list epool
NAME SIZE ALLOC FREE CAP HEALTH ALTROOT
epool 264G 176G 87.6G 66% ONLINE -
# First, note that no reservations are set. (I'm using refreservation so I don't have to calculate cumulative usage).
[root@host epool]# zfs get reservation |grep nds
epool/zones/nds21psfap001 reservation none local
epool/zones/nds21psfap001/app reservation none local
# Here are my refreservation settings:
[root@host epool]# zfs get refreservation |grep nds
epool/zones/nds21psfap001 refreservation 30G local
epool/zones/nds21psfap001/app refreservation 24G local
# Here's where I try to increase my refreservations on my app filesystems - I can't increase them, even by one G!
[root@host epool]# zfs set refreservation=26G epool/zones/nds21psfap001/app
cannot set property for 'epool/zones/nds21psfap001/app': size is greater than available space
# Let's verify that there are not reservations on the parent devices that may be interfering:
[root@host epool]# zfs get reservation,refreservation epool/zones
NAME PROPERTY VALUE SOURCE
epool/zones reservation none default
epool/zones refreservation none default
[root@host epool]# zfs get reservation,refreservation epool
NAME PROPERTY VALUE SOURCE
epool reservation none default
epool refreservation none default
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