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StorNext File System and Storage Manager Installation Guide 89
• QOS Token Hold Time: This parameter is only applicable when using the StorNext FS Quality
of Service (QOS) feature for real-time I/O. This parameter determines the number of seconds
that a client stripe group will hold on to a non-realtime I/O token during periods of inactivity.
• Debug: Check this box to place debug logs in the System Event log.
• Hard Reconnect: Check this box to endlessly attempt reconnects to the FSS.
• Hard Mount: Check this box to endlessly attempt to mount the file system.
• Read Only: Check this box to mount the file system in read-only mode.
• Paged DirCache: This option controls how the directory cache buffer is allocated. The default
is to allocate the buffer from the Windows "non-paged" pool, which is a limited memory
resource. For backward compatibility reasons the default for this option is unchecked, which
causes the directory cache buffer to be allocated from the non-paged pool. Checking this box
allocates the buffer from the paged pool. To reduce memory contention in the non-paged pool,
this box should be checked
• I/O Timeout (60 sec): This option controls whether SNFS times out an I/O after 60 seconds.
When this option is checked (the default), SNFS will attempt to cancel a request made to the
disk driver if the I/O does not complete before the timeout expires. In this case,
STATUS_TIMEOUT is returned to the application. When this option is unchecked, SNFS waits
indefinitely for an I/O to complete.
• Disable Buffer Cache: Check this box to disable the system from buffering any files.
• Allow Diskless Mount: Check this box to allow the file system to be mounted and accessed
without all disks being accessible in the stripe group.
• Fast Failover Detection: Check this box to enable a more aggressive detection of a file
system failure.
• Delay Atime Updates: Check this box to have the file system delay the access time when
reading a file to when the file is closed.
• Readonly Directories: Check this box to have all directories set to read-only mode.
• Protect Preallocation: This option disables the preallocation parts of the extapi (used by
cvmkfile and cvcp) for users other than root/administrator. Enabling this option prevents
unauthorized users from preallocating regions of the file system for a file and then searching
the data. When this option is selected, only root/administrator can preallocate.
• File Name Case Insensitive Check this box to activate the New File Name Case area.
• New File Name Case area:
• Preserve Case: Select this button to keep text as it is entered.
• Convert to Lower: Select this button to convert all text to lower-case.
• Convert to Upper: Select this button to convert all text to upper-case.