Designing Disaster Recovery Clusters using Metroclusters and Continentalclusters, Reprinted October 2011 (5900-1881)

Viewing the Continuous Access Journal Status
The following two sections describe using the pairdisplay and raidvchkscan commands for
viewing the Continuous Access Journal Status.
Viewing the Pair and Journal Group Information - Raid Manager using the “pairdisplay”
Command
The command option “-fe” is added to the Raid Manager pairdisplay command. This option
is used to display the Journal Group ID (and other data) of a device group pair. The Journal Group
ID shows ‘-’ if the device pair is not in Continuous Access Journal mode. Otherwise, it shows a
number.
An example of the pairdisplay command with the “-fe” is as below:
The pairdisplay -fe is primarily used for the following: Continuous Access Journal device
group consistency set, Journal group ID (JID), and Continuous Access link status (AP).
# pairdisplay -g oradb -fe
Group Seq#, LDEV# P/S,Status, Fence, %, P-LDEV# M CTG JID AP EM E-Seq# E-LDEV#
oradb 30053 64 P-VOL PAIR Never, 75 C8 - 1 0 2
oradb 30054 C8 S-VOL PAIR Never, 64 - - 1 0
Viewing the Journal Volumes Information - Raid Manager using the “raidvchkscan” Command
The raidvchkscancommand supports the option (-v jnl [unit#]) in order to find the journal
volume lists, and displays information for the journal volumes.
raidvchkscan { -h -q -z -v jnl [unit#] [ -s Seq# ] [ -f[x ] | }
An example of the raidvchkscan command is as follows:
# raidvchkscan –v jnl 0
JID MU CTG JNLS AP U(%) Q-Marker Q-CNT D-SZ(BLK) Seq# Nnm LDEV#
001 0 1 PJNN 4 21 43216fde 30 512345 62500 2 265
002 1 2 PJNF 4 95 3459fd43 52000 512345 62500 3 270
003 0 3 PJSN 4 0 - - 512345 62500 1 275
004 0 4 PJSF 4 45 1234f432 78 512345 62500 1 276
005 0 5 PJSE 0 0 - - 512345 62500 1 277
006 - - SMPL - - - - 512345 62500 1 278
007 0 6 SMPL 4 5 345678ef 66 512345 62500 1 278
Figure 34 shows the illustration for Q-Marker and Q-CNT. The following terms define the meaning
for contents in the figure.
• JID: Displays the journal group ID.
• MU: Displays the mirror descriptions on the journal group.
• CTG: Displays the consistency group ID.
• JNLS: Displays the following status in the journal group.
SMPL: this means the journal volume is no in pair mode or is in deleting state.◦
◦ P(S)JNN: this means “P(S)vol Journal Normal”
◦ P(S)JSN: this means “P(S)vol Journal Suspend Normal”
◦ PJNF: this means “P(S)vol Journal Normal Full”
◦ P(S)JSF: this means “P(S)vol Journal Suspend Full”
◦ P(S)JSE: this means “P(S)vol Journal Suspend Error” including Link failure
• AP: shows the number of active path on the initiator port in Continuous Access links.
• Q-Marker: Displays the sequence number in the journal group.
• In case of the P-JNL, Q-Marker shows the latest sequence number on P-JNL volume.
Completing and Running a Metrocluster Solution with Continuous Access P9000 or XP 193