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Restore of Netapp FC lun targets used as the disks for a zpool with exported zfs file systems

 
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Old 06-18-2015
Restore of Netapp FC lun targets used as the disks for a zpool with exported zfs file systems
So,

We have a Netapp storage solution. We have Sparc T4-4s running with LDOMS and client zones in the LDOMS, We are using FC for storage comms. So here's the basic setup

FC luns are exported to the primary on the Sparc box. using LDM they are then exported to the LDOM using vdisk. at the LDOM level zpools are created on the vdisks. zfs fs are then created and provided the zone as a dataset and the zfs mountpoint set to a local path in the zone.

here's the rub/question. What is the procedure to restore the FC Lun on the Netapp from a snapshot without having to reboot the zone?

if I do it without rebooting the zone, zpool in the LDOM shows the LUN as degraded/corrupt.

ideas?
 
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LEARN ABOUT DEBIAN

ql-dynamic-tgt-lun-disc

ql-dynamic-tgt-disc(8)					       System Administration					    ql-dynamic-tgt-disc(8)

NAME

       ql-dynamic-tgt-lun-disc - Scans for newly added LUNs.

SYNOPSIS

       ql-dynamic-tgt-lun-disc [OPTIONS]

DESCRIPTION

       Dynamic TGT-LUN Discovery Utility

       This  utility  scans  for  newly added LUNs. After adding new LUNs, you do not need to unload, then load the QLogic FC driver or reboot the
       system

       To begin scanning the LUNs issue following command:

	      # /usr/sbin/ql-dynamic-tgt-lun-disc

       -al,   --allow-lip
	      LIP is not issued by default, even if it is required for scanning new LUNs Setting this option, allows the utility to issue LIP.

       -cl, --current-luns
	      Displays LUNS currently present

       -e,  --extended-scan
	      Use this option as "-e | --extended-scan". to rescan LUNs. This will identify any change in attributes of existing LUNs. This option
	      can be used in combination of scan/refresh or max luns

       -h,  --help, ?
	      Prints this help message

       -i,  --interactive
	      Use this option to use the menu driven program

       -is,  --iscsi
	      Use this option to operate on ISCSI HBAs, this option can be used in combination of any other supported option.

       -m,  --max-lun
	      To set the maximum LUNs to be scanned

       -p,  --proc
	      Use PROC file system for LUN scanning

       -r,  --refresh
	      To refresh, that is remove LUNs that are lost use the options "-r|--refresh". This will remove the LUNs which no more exist.

       -s,  --scan [ -r|--refresh ]
	      The QLogic LUN scan utility re-scans all the devices connected to the QLogic HBA

SEE ALSO

       ql-lun-state-online(8), ql-hba-snapshot(8), ql-set-cmd-timeout(8)

Matthias Schmitz <;matthias@sigxcpu.org> 			     July 2009						    ql-dynamic-tgt-disc(8)