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Operating Systems AIX Fsck -n on mounted FS - how unreliable ? Post 302925519 by maraixadm on Monday 17th of November 2014 04:30:36 PM
Old 11-17-2014
Question Fsck -n on mounted FS - how unreliable ?

greetings all, we had SAN bobbles recently and so I ran fsck against all local FS on all systems.

our domino servers present a moving set of alleged corruption, both JFS and JFS2 FS.

Am I playing whack-a-mole with special effects (i.e. false positives) produced by vigorous filesystem activity while I'm trying to scan it ? Or is this potentially real enough so it's worth taking outages to unmount FS, etc. ?

TIA
 

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mountall(1M)															      mountall(1M)

NAME
mountall, umountall - mount and unmount multiple file systems SYNOPSIS
FStype] [file_system_table | FStype] DESCRIPTION
is used to mount file systems according to file_system_table. By default, is the file_system_table. If a dash is specified, reads file_system_table from the standard input; the standard input must be in the same format as the Before each file system is mounted, a check is done using (see fsck(1M)) to ensure that the file system is mountable. If the file system is not mountable, it is repaired by before the mount is attempted. causes all mounted file systems except the non-removable file systems such as to be unmounted. Options and recognize the following options: Specify the file system type (FStype) to be mounted or unmounted. Specify action on local file systems only. Specify action on remote file systems only. Send a signal to processes that have files opened. Attempt to mount all the unmounted file systems. This option will not perform the file system consistency check and repair. Perform the file system consistency check and repair on all unmounted file system. This option will not mount the file systems. DIAGNOSTICS
Error and warning messages may originate from or See fsck(1M), mount(1M), or fuser(1M) to interpret the error and warning messages. EXAMPLES
Mount all unmounted file systems listed in Mount all local file systems listed in Mount all remote file systems listed in Mount all local hfs file systems: Unmount all NFS file systems and kill any processes that have files opened in the file system: WARNINGS
especially with the option, should be used with extreme caution, because it can cause severe damage. The option may not be available in future releases. may not be effective with some cases of LOFS file systems. FILES
Static information about the file systems Mounted file system table SEE ALSO
fsck(1M), mount(1M), fuser(1M), mnttab(4), fstab(4), signal(2) mountall(1M)
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