VVR I / O throughput improvements using batched writes
Do you know about the features of the above ?
VVR I / O throughput improvements using batched writes
Do you know about the features of the above ?
Hello,
I did the full sync and now the status is as below
root@atmas1o:/ericsson/hagcs/log# vradmin -l printrvg
Replicated Data Set: ossrvg
Primary:
HostName: pallini-ossrvg <localhost>
RvgName: ossrvg
DgName: ossdg
datavol_cnt: 24
vset_cnt: 0
srl: oss_srl_vol
RLinks:
name=to_metamorphosi_ossrvg, detached=on, synchronous=off
Secondary:
HostName: metamorphosi-ossrvg
RvgName: ossrvg
DgName: ossdg
datavol_cnt: 24
vset_cnt: 0
srl: oss_srl_vol
RLinks:
name=to_pallini_ossrvg, detached=on, synchronous=off
Secondary:
HostName: metamorphosi-ossrvg
RvgName: ossrvg
DgName: ossdg
datavol_cnt: 24
vset_cnt: 0
srl: oss_srl_vol
RLinks:
name=to_pallini_ossrvg, detached=on, synchronous=off
Config Errors:
metamorphosi-ossrvg: unknown
root@atmas1o:/ericsson/hagcs/log# vradmin -g ossdg repstatus ossrvg
Replicated Data Set: ossrvg
Primary:
Host name: pallini-ossrvg
RVG name: ossrvg
DG name: ossdg
RVG state: enabled for I/O
Data volumes: 24
VSets: 0
SRL name: oss_srl_vol
SRL size: 200.00 G
Total secondaries: 1
Secondary:
Host name: metamorphosi-ossrvg
RVG name: ossrvg
DG name: ossdg
Data status: inconsistent
Replication status: stopped (primary detached)
Current mode: N/A
Logging to: SRL
Timestamp Information: N/A
Config Errors:
metamorphosi-ossrvg: unknown
root@atmas1o:/ericsson/hagcs/log#
root@atmas1o:/ericsson/hagcs/log# vxrlink -g ossdg status to_metamorphosi_ossrvg
VxVM VVR vxrlink INFO V-5-1-3539 Rlink to_metamorphosi_ossrvg is not currently attached (STALE).
You have new mail in /var/mail/root
root@atmas1o:/ericsson/hagcs/log#
Now if i start replication with below command, will there be any impact, as the primary is not buffering data as this status is there from last night.
vradmin -g ossdg -s startrep ossrvg
Hello,
We are using VVR technology for replication from our PROD enviornment ( 2 node solaris ldom cluster) to our DR enviornment (1 node solaris ldom cluster) with Geo-Cluster configured.
My query is regarding the SRL log volume configuration. What is the best practice for configuring the SRL log volume for a particular RVG. Should be it be mirrored, concat or stripe volume, so that it does not affect the application performance. We have 2 san luns of same size mapped to the servers for the SRL logs, the luns have redundancy (raid 6) at the SAN level. Also does it matter if we have the DCM logs on the same lun as the SRL log volume?
Thanks in Advance.
Can we configure VVR between two nodes which are not under VCS?
I need help
I am having replication configured from cluster servers on Windows, today I have faced an issue where replication was stop and in DCM Mode.
Today we facing replication issues with one of the clusters. The replication is getting stopped and DCM log is getting activated.
The replication restarts after forced resync command but again stops after sometime.
Thanks
Hello,
We have a Disaster recovery setup of 2 node (solaris) cluster at prod and 1 node at the DR. This setup uses VVR for data replication and VCS Geo-cluster for resource group failover (SFHA 6.0).
My query was regarding VVR,
1. In case of async replication, whats the frequency of replication of data, and can this frequncy be tuned?
2. In case we loose the network connectivity between the prod and DR site and the SRL fills up and also the DCM fills up after that, what is the effect on the existing application service group for which the data is being replicated? Will it stop the write to the existing application or is the application service group offlined or is it application performance affected in case the application is still working.
3. Once the link/connectivity is recovered (between the prod and the DR site), Would it require a full-resync of the RVG for the data to be in sync?
Dear Experts
I am in a query, hope anyone can help
I want to replicate data at two or many sites at a time.
For example One Server at Primary Site is replicating to Server at DR site and simultaneously replicating to Server at third DR site.
I want reverse replication from both DR sites as well
Can we perform this with Symantec VVR ?
Hello,
I'm in the process of creating a test lab for VVR replication, hence do not require a mirrored SRL & DCM (as mentioned in the best practice). The diskgroup to be replicated has only 1 data volume and 1 srl volume. The data volume does not have any free space left and the dcm needs to be created on the srl volume. Can some one please tell me the commands to create & configure unmirrored SRL & DCM, since the vradmin command fails if it doesnt find enough drives in the diskgroup to mirror the DCM.
Im using SFHA 6.0, data volume name datav & srl volume name is srlv. Just looking for the command formats and the high level steps.