NetBackup™ NAS Administrator's Guide
- Section I. About NAS backups
- Section II. Using NAS-Data-Protection (D-NAS)
- D-NAS overview
- D-NAS Planning and Tuning
- Pre-requisites for D-NAS configuration
- Volume multi-host backup
- Configure D-NAS policy for NAS volumes
- Using accelerator
- Using Vendor Change Tracking
- Replication using D-NAS policy
- Restoring from D-NAS backups
- Troubleshooting
- Section III. Using NDMP
- Introduction to NetBackup for NDMP
- About NetBackup for NDMP
- Types of NDMP backup
- About assigning tape drives to different hosts
- Installation Notes for NetBackup for NDMP
- Configuring NDMP backup to NDMP-attached devices
- About Media and Device Management configuration
- About creating an NDMP policy
- About enabling or disabling DAR
- Configuring NDMP backup to NetBackup media servers (remote NDMP)
- Configuring NDMP DirectCopy
- Accelerator for NDMP
- Remote NDMP and disk devices
- Using the Shared Storage Option (SSO) with NetBackup for NDMP
- NAS appliance information for NDMP
- Vendor-specific information
- EMC Celerra
- NetApp
- Using NetBackup with NetApp's Data ONTAP 8.2 cluster mode
- Using NetBackup with NetApp's Data ONTAP 8.2 cluster mode
- Backup and restore procedures
- Troubleshooting
- Using NetBackup for NDMP scripts
- Introduction to NetBackup for NDMP
NEC Storage NV series
This information is provided to help you use NetBackup for NDMP with an NEC Storage NV Series file server.
For more information on the NEC Storage NV Series, refer to the following documentation:
NEC Storage NV Series Software - Users Guide
NEC Storage NV Series Software - Maintenance Manual
For further details, contact NEC Corporation.
To enable the NDMP option Program Package (PP), use a browser to start the package installer. See the NEC Storage NV Series Software - Maintenance Manual
for more details.
Robot
To find the robot device name, use the telnet command to log in to the NEC Storage NV system. Then run the following command:
dmesg | grep "scsi generic"
Example output:
Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0, type 8
The robot device is
/dev/sg0
.Drives
To find the tape device names, log in to the NEC Storage NV system. Then enter the following:
dmesg | grep "scsi tape"
Example output:
Attached scsi tape st0 at scsi0, channel 0, id 1, lun 0 Attached scsi tape st1 at scsi0, channel 0, id 2, lun 0
The tape device names, to be entered on the Add Drive display in the NetBackup Administration Console, are
/dev/nst0
for tape drive 1 and/dev/nst1
for tape drive 2. Always use the drive names that begin with "n" because these are the non-rewinding devices.
The following directive must be placed at the start of the NetBackup policy'sBackup Selections tab (file list):
set XFS=yes
This directive must be specified for all NetBackup backups of the NEC Storage NV Series, otherwise the backup will fail. Note that the set XFS=yes directive must be specified for both XFS and XFSFW file systems.
To use snapshots for NDMP backups, add the following directive to the file list:
set SANPSHOT=y
To enable debugging for NDMP, log in to the NEC Storage NV Series and add the following lines to the /etc/sysconfig/ndmpd
file:
LOGFILE=/var/dumpfile/ndmpd DEBUG=yes LEVEL=65535
Debug logs are located in the /var/dumpfile/ndmpd
directory.
Known restrictions
The NEC Storage NV Series supports the NDMP protocol version V2 only.
The NEC Storage NV Series can back up only file systems, not subdirectories.
Only one backup or restore can be running per file system. For example, if a backup job is currently backing up
/export/sxfs/vol1
, another attempt to back up or restore/export/sxfs/vol1
at the same time will fail.A second backup of the same file system could fail if started too soon after the first backup of that file system. This is because a backup job needs time to delete the snapshot after completion of the backup. Until the snapshot is deleted, the second backup of the same file system cannot start. The same is true for restores: a restore of a file system could fail if started too soon after a previous restore of that file system.