US Robotics 7931 Guia do Utilizador descarregar pdf (Página 237)

Chapter 8 Advanced Topics 213

■ Within the HA-SAM environment, the nosam mount option must be specified for

any non-HA-SAM Sun StorageTek QFS file systems.

■ The HA-SAM resource, QFS file systems, and HAStoragePlus file systems must

all be configured within the same resource group. A separate Sun Cluster

resource group must be created for non-HA-SAM file systems.

■ When using the SUNW.hasam resource type, you cannot specify the /jointfilesconvert/483749/bg mount

option in the /etc/vfstab file.

■ Fibre tape drives are required. Tape drives must be visible to all systems through

the fibre fabric, but should not be configured as SAM-QFS shared drives.

■ Disk volumes for disk archiving must be visible to all nodes.

■ The active metadata server and potential metadata server must not be configured

as a SAM-Remote client or server.

■ The Sun StorageTek SAM catalog and stager directory must be in the default

location: /var/opt/SUNWsamfs/. If it is any other location, the cluster nodes

will not be able to locate it.

■ Before configuring HA-SAM, verify that all Sun StorageTek SAM operations are

working correctly on the required nodes in the cluster.

■ Only highly available (HA) agents are supported; no scalable agents are

supported.

■ Oracle software is not supported with this configuration, but the HA-SAM agent

is supported as an RMAN target for Oracle backups.

■ Voluntary failover forces a failover after five minutes in order to avoid problems

with other potential HA agents.

■ During voluntary failover, active archiving and staging times-out and terminates

after less than 5 minutes.

■ During failover, all SAM-QFS file systems must be failed over in order to avoid

complications with the recycler that could result in loss of data.

■ Sun StorageTek network attached tape libraries are supported, but not ADIC or

Sony 8400 PetaSite Series automated tape libraries.

■ HA-SAM environments cannot be managed by the File System Manager browser

interface.

■ During involuntary failover, error messages for idled tape drives may be seen in

the /var/adm/messages log file. These messages can safely be ignored. They

simply indicate that HA-SAM did not have time to idle the drives before failover.

■ After failover, volumes in the catalog may be marked with the E flag. This can

occur when the software is unable to write the correct label at the end of a tape.

To clear this error, see “To Clear Media Errors” on page 23.

1 2 ... 232 233 234 235 236 237 238 239 240 241 242 ... 287 288

Sem comentários

US Robotics 7931 Guia do Utilizador Página 237