Cluster Server 7.3.1 Bundled Agents Reference Guide - Linux
- Introducing Bundled agents
- Storage agents
- DiskGroup agent
- DiskGroupSnap agent
- Notes for DiskGroupSnap agent
- Sample configurations for DiskGroupSnap agent
- Volume agent
- VolumeSet agent
- Sample configurations for VolumeSet agent
- LVMLogicalVolume agent
- LVMVolumeGroup agent
- Sample configurations for LVMVolumeGroup agent
- Mount agent
- Sample configurations for Mount agent
- VMwareDisks agent
- SFCache agent
- AWS EBSVol agent
- AzureDisk agent
- Network agents
- About the network agents
- IP agent
- NIC agent
- Notes for the NIC agent
- Sample configurations for NIC agent
- IPMultiNIC agent
- MultiNICA agent
- IP Conservation Mode (ICM) for MultiNICA agent
- Performance Mode (PM) for MultiNICA agent
- Sample configurations for MultiNICA agent
- DNS agent
- Agent notes for DNS agent
- About using the VCS DNS agent on UNIX with a secure Windows DNS server
- Sample configurations for DNS agent
- AWSIP agent
- AWSRoute53 agent
- AzureIP agent
- AzureDNSZone agent
- File share agents
- NFS agent
- NFSRestart agent
- Share agent
- About the Samba agents
- SambaServer agent
- SambaShare agent
- NetBios agent
- Service and application agents
- Apache HTTP server agent
- Application agent
- Notes for Application agent
- Sample configurations for Application agent
- CoordPoint agent
- KVMGuest agent
- Notes for KVMGuest agent
- Sample configurations for KVMGuest environment
- Sample configurations for RHEV environment
- Process agent
- Usage notes for Process agent
- Sample configurations for Process agent
- ProcessOnOnly agent
- AzureAuth agent
- Infrastructure and support agents
- Testing agents
- Replication agents
- RVG agent
- RVGPrimary agent
- RVGSnapshot
- RVGShared agent
- RVGLogowner agent
- RVGSharedPri agent
- VFRJob agent
- Dependencies for VFRJob agent
- Notes for the VFRJob agent
Configuration considerations
Keep the following recommendations in mind:
You must install Veritas Volume Manager 5.1 or later with the FMR license and the Site Awareness license.
Do not bring the DiskGroupSnap resource online in the SystemZone where the application service group is online.
Make sure that the firedrill service group and the application service group both use the same values for the SystemZones attribute.
Do not use Volume resources in the firedrill service group. The DiskGroupSnap agent internally uses the vxvol command to start all the volumes in the firedrill disk group.
In large setups, you may need to tweak the various timer values so that the timers do not time out while waiting for VxVM commands to complete. The timers you need to tweak are the OfflineTimeout for the DiskGroupSnap resource and MonitorInterval and ActionTimeout for the associated DiskGroup resource, for example:
# haconf - makerw # hares -override dgsres OfflineTimeout # hares -modify dgsres OfflineTimeout 600 # hares -override dgres MonitorInterval # hares -modify dgres MonitorInterval 1200 (this has to be twice the value intended for ActionTimeout below) # hares -override dgres ActionTimeout # hares -modify dgres ActionTimeout 600 # haconf - dump - makero
When you create the firedrill service group, in general use the same attribute values that you use in the application service group.
The BlockDevice attribute of the Mount resource changes between the application service group and the firedrill service group. In the BlockDevice path, you must append an _fd to the disk group name portion, for example,
/dev/vx/dsk/newdg1/newvol1 becomes /dev/vx/dsk/newdg1_fd/newvol1.
See Figure: Sample resource values for a DiskGroupSnap resource. shows the changes to resource values for the firedrill service group; note that the Volume resource is not included.
Before commencing the fire drill, make sure that all the sites registered in the application DiskGroup are in ACTIVE state.