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Dell PowerVault MD 32XX/36XX Series Storage Arrays CLI Guide

PDF

Check Virtual Disk Consistency

Description

This command checks a virtual disk for consistency and media errors, and writes the results of the check to a file.

Syntax

check virtualDisk [
                                 virtualDiskName]
                                 consistency [consistencyErrorFile=
                                 filename]
                                 [mediaErrorFile=
                                 filename]
                                 [priority=(highest | high | medium | low | lowest)]
                                 [startingLBA=
                                 LBAvalue] [endingLBA=
                                 LBAvalue]
                                 [verbose=(TRUE | FALSE)]

Parameters

Parameter Description
virtualDisk Name of the specific virtual disk to check consistency. You must put brackets ([ ]) around the virtual disk name. If the virtual disk name has special characters, you must also put quotation marks (" ") around the virtual disk name.
consistencyErrorFile Name of the file in which to save the consistency error information. You must put quotation marks (" ") around the file name.
mediaErrorFile Name of the file in which to save the media error information. You must put quotation marks (" ") around the file name.
priority Specifies the priority that the consistency check has relative to host I/O activity. Valid entries are highest, high, medium, low, or lowest.
startingLBA The starting logical block address. Use integer values.
endingLBA The ending logical block address. Use integer values.
verbose Captures progress details, such as percent complete, and shows the information while virtual disk consistency is being repaired. To capture progress details, set this parameter to TRUE. To prevent capturing progress details, set this parameter to FALSE.
  • NOTE: The starting logical block address and the ending logical block address are useful for very large single-virtual disk LUNs. Running a virtual disk consistency check on a very large single-virtual disk LUN can take a long time. By defining the beginning address and ending address of the data blocks, you can reduce the time that a virtual disk consistency check takes to complete.

    For a large virtual disk, you can set the priority to high without affecting the I/O.

    If you observe a consistency mismatch MEL event, do not use startingLBA and endingLBA unless advised by Dell Support.

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