iSCSI/ZVOL: ZFS or UFS on the initiator side?
Patrick M. Hausen
hausen at punkt.de
Fri Apr 7 15:04:53 UTC 2017
a general question:
If I export a ZVOL via iSCSI to be used be another FreeBSD
machine as a block device, is it advisable to use ZFS or should
I stick to UFS?
I don't have any reason to believe that ZFS might be harmful.
I just know from experience, that e.g. tunneling TCP through
TCP can lead to strange effects if you happen to really have
packet-loss. Anything similar for ZFS in ZFS?
What if iSCSI target (ZVOL) and initiator are on the same machine?
They'll share ZIL and ARC. What if memory gets low?
I'm investigatiing the feasibility of creating a HA setup by
running a mirror (ZFS or gmirror/UFS) on top of 2 iSCSI ZVOLs,
one on the local machine but still via ISCSI, one on a remote
TIA for your opinion and advice,
punkt.de GmbH * Kaiserallee 13a * 76133 Karlsruhe
Tel. 0721 9109 0 * Fax 0721 9109 100
info at punkt.de http://www.punkt.de
Gf: Jürgen Egeling AG Mannheim 108285
More information about the freebsd-fs