Users Guide
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Number Of Virtual Disks Per Controller
A Virtual Disk Of Minimum Size Is Not Visible To Windows Disk
Management
If you create a virtual disk using the minimum allowable size in Storage Management, the virtual disk may not be visible to Windows Disk
Management even after initialization. This occurs because Windows Disk Management is only able to recognize extremely small virtual disks
if they are dynamic. It is advisable to create virtual disks of larger size when using Storage Management.
Virtual Disk Errors On Systems Running Linux
On some versions of the Linux operating system, the virtual disk size is limited to 1TB. If you create a virtual disk that exceeds the 1TB
limitation, your system may experience the following behavior:
• I/O errors to the virtual disk or logical drive.
• Inaccessible virtual disk or logical drive.
• Virtual disk or logical drive size is smaller than expected.
If you have created a virtual disk that exceeds the 1TB limitation, you must:
1 Back up your data.
2 Delete the virtual disk.
3 Create one or more virtual disks that are smaller than 1TB.
4 Restore your data from backup.
Irrespective of whether your Linux operating system limits the virtual disk size to 1TB, the virtual disk size depends on the version of
the operating system and any updates or modications that you have implemented. For more information on operating system, see
your operating system documentation.
Problems Associated With Using The Same Physical Disks For
Both Redundant And Non-Redundant Virtual Disks
When creating virtual disks, you should avoid using the same physical disks for both redundant and nonredundant virtual disks. This applies
to all controllers. Using the same physical disks for both redundant and nonredundant virtual disks can result in unexpected behavior
including data loss.
NOTE
: SAS controllers do not allow you to create redundant and nonredundant virtual disks on the same set of physical disks.
Specic Problem Situations And Solutions
This section contains additional troubleshooting information. Topics include:
• Physical Disk Is Oine Or Displays An Error Status
• Receive A Bad Block Alert With Replacement, Sense, Or Medium Error
• Read And Write Operations Experience Problems
• A Task Menu Option Is Not Displayed
• A Corrupt Disk Or Drive Message Suggests Running Autocheck During A Reboot
• Erroneous Status And Error Messages After A Windows Hibernation
Troubleshooting
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