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How to change the rlink parameters?

David_Zhang
Level 4
Partner Certified

Hi, I just setup VVR system.

I can find the information link following:

root@lnx01 ~]# vxprint -Pl
Disk group: datadg

Rlink:    rlk_lnx02_rvg
info:     timeout=500 packet_size=8400 rid=0.1072
          latency_high_mark=10000 latency_low_mark=9950
          bandwidth_limit=none
state:    state=ACTIVE
          synchronous=off latencyprot=off srlprot=autodcm
assoc:    rvg=rvg
          remote_host=lnx02 IP_addr=192.168.20.178 port=4145
          remote_dg=datadg
          remote_dg_dgid=1261631745.12.lnx01
          remote_rvg_version=21
          remote_rlink=rlk_lnx01_rvg
          remote_rlink_rid=0.1074
          local_host=lnx01 IP_addr=192.168.20.177 port=4145
protocol: UDP/IP
flags:    write enabled attached consistent connected asynchronous

The vvr primary and secondary systems in one same LAN,so how do I change the replication mode to synchronous? And whether can I change the packet_size?
Thank you very much!

1 ACCEPTED SOLUTION

Accepted Solutions

Dev_Roy
Level 6
Accredited Certified
Hello David,

To change the replication mode to synchronous you need to run the following command:
# vradmin -g <disk group name> set <local rvg name> <secondary hostname> synchronous=override

Yes, you can change the packet_size as well. Run the following command:
# vradmin set <rvg_name> <secondary_host> packet_size=<size>

To now more about various options and other details please refer the admin guide.
http://sfdoccentral.symantec.com/sf/5.0MP3/solaris/pdf/vvr_admin.pdf

Hope this helps.

Regards,
Dev Roy.

View solution in original post

2 REPLIES 2

Dev_Roy
Level 6
Accredited Certified
Hello David,

To change the replication mode to synchronous you need to run the following command:
# vradmin -g <disk group name> set <local rvg name> <secondary hostname> synchronous=override

Yes, you can change the packet_size as well. Run the following command:
# vradmin set <rvg_name> <secondary_host> packet_size=<size>

To now more about various options and other details please refer the admin guide.
http://sfdoccentral.symantec.com/sf/5.0MP3/solaris/pdf/vvr_admin.pdf

Hope this helps.

Regards,
Dev Roy.

Gaurav_S
Moderator
Moderator
   VIP    Certified
vradmin command would be helpful in setting mode to synchronous on both the nodes at the same time...

If you want a granular control, you can change the same using vxedit command as well...

Make sure you read VVR planning & Tuning guide about "considerations of using synchronous mode" before using it.... All guides are available at sfdoccentral.symantec.com



Gaurav