General properties for virtual disks on storage arrays

Article:HOWTO23894  |  Created: 2010-01-01  |  Updated: 2011-08-31  |  Article URL http://www.symantec.com/docs/HOWTO23894
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General properties for virtual disks on storage arrays

General properties provide information about virtual disks on storage arrays.

See Editing general properties of virtual disks on storage arrays.

Table: General properties for virtual disks on storage arrays

Item

Description

Name

Displays the name that Backup Exec assigns to the virtual disk when you use the Storage Array Configuration Wizard. The name is VIRTDISKx, where x is a number that increments each time that you add a storage array.

See Renaming a virtual disk or storage array.

Status

Displays the current status of the virtual disk.

Statuses for a virtual disk are as follows:

  • Pause

    The virtual disk is temporarily stopped.

    See Pausing storage devices.

  • Enable

    The virtual disk is available for use with Backup Exec. If the virtual disk is disabled, it is available for use with other applications. Backup Exec does not monitor the low disk space thresholds for a disabled virtual disk.

  • Online

    The virtual disk is available for use.

  • Offline

    Backup Exec cannot access the virtual disk. You can check Offlineto try to bring the storage array online.

Used capacity

Displays the amount of raw capacity of all of the physical disks in the storage array that were used. Backup Exec calculates used capacity by subtracting available capacity from total capacity.

Hardware name

Displays the name that the storage array hardware or the vendor hardware provider assigns.

Hardware status

Displays the hardware status.

Values for the hardware status are as follows:

  • OK

    The virtual disk is online.

  • Offline

    The virtual disk is offline. Backup Exec cannot access it. To bring the virtual disk online, refer to the vendor documentation and management software that are supplied with the storage array.

  • Failed

    The virtual disk has failed. Backup Exec cannot access it. To troubleshoot the issue, refer to the vendor documentation and management software that are supplied with the storage array. After the issue is resolved, the virtual disk is automatically brought online.

Hardware health

Displays the hardware health.

Values for the hardware health are as follows:

  • OK

    The virtual disk is online.

  • Warning

    The virtual disk may fail or produce errors, but it is currently operational.

  • Critical

    The virtual disk has failed. Backup Exec cannot access it. To troubleshoot the issue, refer to the vendor documentation and management software that are supplied with the storage array.

  • Unspecified

    The virtual disk is in the process of configuration.

Disk classification

Displays the type of disk group that the virtual disk is on.

Backup Exec creates only physical disk groups with a disk classification of Stripe with parity (RAID 5). If another disk classification appears, the disk group was created with a tool other than the Storage Provisioning Option.

Maximum file size

Displays the maximum size for each file that is contained on this virtual disk. Select either MB or GB. The file size can be from one MB to 4096 GB. The default size is four GB.

If you create small but numerous files, performance may slow since the computer must still process each file. However, if you create large files, file system limitations can cause memory allocation problems or network issues. These issues can be a problem if you store files across a network.

Maximum number of backup sets per file

Displays the maximum number of backup sets to write to each virtual disk file. The maximum number can range from one to 8192. The default number is 100.

If you specify fewer rather than more backup sets in a file, Backup Exec may be able to reclaim disk space faster. For example, you specify 100 backup sets per file. Backup Exec cannot reclaim any disk space until the overwrite protection period expires for all of the backup sets. If you specify one backup set per file, Backup Exec can reclaim disk space as soon as the overwrite protection period expires for that set.

Allow x concurrent jobs for this device

Displays the number of concurrent operations that you want to allow to this virtual disk. This number can range from one to 16. The default number is one.


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v19689741_be2010_adm


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