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Full Discussion: mirror external scsi to san
Operating Systems AIX mirror external scsi to san Post 302185195 by itik on Monday 14th of April 2008 12:28:26 PM
Old 04-14-2008
mirror external scsi to san

Hi,

How do I mirror an external scsi vg to one hdisk san? The vg has multiple hdisks and the san hdisk has only one.

Is this possible or do I need to create the same hdisks as the scsi? What I meant is, if the scsi vg has 10 hdisk then I need to create also 10 hdisk of san with the same size as per hdisk?

Or I can mirror a logical vg one by one?

Here's the sample of one of the vg:
LV NAME TYPE LPs PPs PVs LV STATE MOUNT POINT
lv110 jfs 3840 3840 8 closed/syncd N/A
lv102 jfs 128 128 1 closed/syncd N/A
lv68 jfs 16 16 1 closed/syncd N/A
loglv03 jfslog 1 1 1 open/syncd N/A
lvcrt01 jfs 178 178 1 open/syncd /crt01
lv106 jfs 16 16 1 open/syncd /db2replication
lv100 jfs 320 320 2 open/syncd /db2logs
paging05 paging 16 16 1 open/syncd N/A
paging06 paging 16 16 1 open/syncd N/A
paging01 paging 16 16 1 open/syncd N/A
lvcrt02 jfs 175 175 1 open/syncd /crt02
lv103 jfs 256 256 1 closed/syncd N/A


As much as possible I don't want a downtime. I don't know what is the best approach.

Thanks in advance,
itik
 

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jfs_logdump(8)						  JFS utility - journal log dump					    jfs_logdump(8)

NAME
jfs_logdump - dump a JFS formatted device's journal log SYNOPSIS
jfs_logdump [ -a ] device DESCRIPTION
jfs_logdump dumps the contents of the journal log from the specified JFS formatted device into output file ./jfslog.dmp. device is the special file name corresponding to the actual device from which the journal log will be dumped (e.g. /dev/hdb1 ). jfs_logdump must be run as root. OPTIONS
-a Dump the entire contents of the journal log instead of just the committed transactions since the last synch point. EXAMPLE
Dump the entire JFS journal log from the 3rd partition of the 2nd hard disk into ./jfslog.dmp: jfs_logdump -a /dev/hdb3 REPORTING BUGS
If you find a bug in JFS or jfs_logdump, please report it via the bug tracking system ("Report Bugs" section) of the JFS project web site: http://jfs.sourceforge.net/ Please send as much pertinent information as possible, including any jfs_logdump error messages and the complete output of running jfs_fsck with the -v option on the JFS device. SEE ALSO
jfs_fsck(8), jfs_mkfs(8), jfs_fscklog(8), jfs_tune(8), jfs_debugfs(8) AUTHORS
Barry Arndt (barndt@us.ibm.com) William Braswell, Jr. jfs_logdump is maintained by IBM. See the JFS project web site for more details: http://jfs.sourceforge.net/ October 29, 2002 jfs_logdump(8)
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