I have a guest LDOM running Solaris 10U11 on a Sun T4-1 host running Solaris 11.4. The host has a disk named bkpool that I'd like to share with the LDOM so both can read and write it. The host is hemlock, the guest is sol10.
Code:
root@hemlock:~# zpool list
NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT
bkpool 832G 253G 579G 30% 1.00x ONLINE -
rpool 832G 666G 166G 80% 1.00x ONLINE -
root@hemlock:~# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c0t5000C50070FFBF07d0 <SEAGATE-ST900MM0006-0001-838.36GB>
/scsi_vhci/disk@g5000c50070ffbf07
/dev/chassis/SYS/HDD2/disk
1. c1t3A0D19F2BE2346CEd0 <LSI-Logical Volume-3000-837.26GB>
/pci@400/pci@1/pci@0/pci@4/scsi@0/iport@v0/disk@w3a0d19f2be2346ce,0
I stopped and restarted the LDOM, but there is no sign of /bkpool there.
Code:
# ls /dev/dsk
c0d0s0 c0d0s3 c0d0s6 c0d1s1 c0d1s4 c0d1s7 c0d2s1 c0d2s4
c0d0s1 c0d0s4 c0d0s7 c0d1s2 c0d1s5 c0d2 c0d2s2 c0d2s5
c0d0s2 c0d0s5 c0d1s0 c0d1s3 c0d1s6 c0d2s0 c0d2s3 c0d2s6
# zpool list
NAME SIZE ALLOC FREE CAP HEALTH ALTROOT
rpool 596G 10.0G 586G 1% ONLINE -
#
Actually it seems like the guest does know about the bkpool disk:
Code:
# format
Searching for disks...done
AVAILABLE DISK SELECTIONS:
0. c0d1 <SUN-DiskImage-600GB cyl 17064 alt 2 hd 96 sec 768>
/virtual-devices@100/channel-devices@200/disk@1
1. c0d2 <SEAGATE-ST900MM0006-0001-838.36GB>
/virtual-devices@100/channel-devices@200/disk@2
So I guess now the question is simply how do I make c0d2 available in the Solaris 10 LDOM? I'd like the final result to be that the LDOM contains a mountpoint named /bkpool that holds the contents of the disk.
Last edited by Michele31416; 12-19-2019 at 06:04 PM..
One thing for sure is that only one of the nodes (Solaris 11 Global or Solaris 10 LDOM) can have control of the volume. In any situation, having two operating systems writing to a volume simultaneously is a recipe for instant filesystem corruption. One operating system must control file opening, locking, etc. Even in a cluster scenario using dual tailed storage, a major function of the cluster suite is to control which node has exclusive control of the volume and effect disciplined failover when necessary.
Therefore, like any two nodes, one option is to mount the volume on one node, configure a NFS share on that node, and mount the volume using a NFS client from the second node. The first node then controls ALL activity on the volume.
These 4 Users Gave Thanks to hicksd8 For This Post:
OK, I'm glad I asked then. So I have to mount the /bkpool disk in the LDOM as an NFS share? Can you give me a pointer on how to do that? Is this what Oracle calls "virtual disk multipathing"? There's an example of that further down in the link in the OP but I'm not quite sure how to do it. Also, do I first need to undo the add-vdsdev and add-vdisk commands I gave earlier? I don't want to mess up my disk.
UPDATE
Well as usual the Oracle documentation was overly complex and ambiguous. I figured it out, thanks to the suggestion above:
On the host, assuming the IP of the LDOM at 192.168.0.78, do:
Then in the LDOM (with the IP of the host hemlock at 192.168.0.183), do:
Code:
# cd /
# mkdir bkpool
# mount -F nfs -o vers=3 192.168.0.183:/bkpool /bkpool
The LDOM now has a mountpoint named /bkpool containing everything on the host's /bkpool disk. The host and the LDOM can both read and write the disk. No rebooting anywhere required. Easy! :-)
Last edited by Michele31416; 12-19-2019 at 10:13 PM..
These 2 Users Gave Thanks to Michele31416 For This Post:
Hi! Quick background for the question...
I have Solaris 11.4 control/primary zone with some LDOM's on top of it. I have some raw iSCSI LUN's presented to the control zone/primary zone from a NetApp, which I then pass up to the LDOM's via the VDS/vdisk. So basically the LDOM VM's see the disk as... (1 Reply)
Generally, this is what we do:-
On primary, export 2 LUNs (add-vdsdev).
On primary, assign these disks to the ldom in question (add-vdisk).
On ldom, created mirrored zpool from these two disks.
On one server (which is older) we have:-
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12-19-2019
