[LU-4334] With ZFS can only declare a single mgsnode for MDT or OST

• Type: Bug
• Resolution: Fixed
• Priority: Critical
• Fix Version/s: Lustre 2.7.0, Lustre 2.5.4
• Affects Version/s: Lustre 2.4.1, Lustre 2.6.0, Lustre 2.5.2
• Labels: llnl prz zfs
• Environment: SL6.4

Epic/Theme

zfs

• Severity: 1
• Assignee: Nathaniel Clark
• Reporter: Eric Kolb

Description

When trying to declare two mgsnodes for HA only one entry is ever accepted when using backfstype=zfs. All below examples fail, if the --mgsnode=nid:nid syntax worked then all might be okay.

mkfs.lustre --reformat --fsname=RSF1 --ost --index=2 --mgsnode=10.82.0.9@tcp1 --mgsnode=10.82.0.9@tcp1:10.82.0.10@tcp1 --servicenode=10.82.0.11@tcp1:10.82.0.12@tcp1 --backfstype=zfs OST2/ost

mkfs.lustre --reformat --fsname=RSF1 --ost --index=2 --mgsnode=10.82.0.9@tcp1:10.82.0.10@tcp1 --servicenode=10.82.0.11@tcp1:10.82.0.12@tcp1 --backfstype=zfs OST2/ost

Issue Links

• is related to: LU-4749 ZFS-backed OST mkfs.lustre --servicenode does not correctly add failover_nids
• is related to: LU-8311 Target does not mount with the new mgsnode parameter format in case of multirail configuration