| 1 | .TH mmdelfs 02/16/06 |
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| 2 | mmdelfs Command |
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| 3 | .SH "Name" |
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| 4 | .PP |
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| 5 | \fBmmdelfs\fR - Removes a GPFS file system. |
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| 6 | .SH "Synopsis" |
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| 7 | .PP |
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| 8 | \fBmmdelfs\fR \fIDevice\fR [\fB-p\fR] |
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| 9 | .SH "Description" |
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| 10 | .PP |
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| 11 | The \fBmmdelfs\fR command removes all the structures for the specified |
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| 12 | file system from the nodes in the cluster. |
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| 13 | .PP |
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| 14 | Before you can delete a file system using the \fBmmdelfs\fR command, you |
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| 15 | must unmount it on all nodes. |
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| 16 | .PP |
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| 17 | \fBResults\fR |
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| 18 | .PP |
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| 19 | Upon successful completion of the \fBmmdelfs\fR command, these tasks are |
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| 20 | completed on all nodes: |
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| 21 | .RS +3 |
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| 22 | .HP 3 |
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| 23 | \(bu Deletes the character device entry from \fB/dev\fR. |
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| 24 | .HP 3 |
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| 25 | \(bu Removes the mount point directory where the file system had been |
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| 26 | mounted. |
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| 27 | .RE |
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| 28 | .SH "Parameters" |
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| 29 | .PP |
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| 30 | .RS +3 |
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| 31 | \fB\fIDevice\fR |
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| 32 | \fR |
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| 33 | .RE |
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| 34 | .RS +9 |
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| 35 | The device name of the file system to be removed. File system names |
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| 36 | need not be fully-qualified. \fBfs0\fR is as acceptable as |
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| 37 | \fB/dev/fs0\fR. |
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| 38 | .PP |
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| 39 | This must be the first parameter. |
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| 40 | .RE |
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| 41 | .SH "Options" |
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| 42 | .PP |
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| 43 | .RS +3 |
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| 44 | \fB-p |
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| 45 | \fR |
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| 46 | .RE |
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| 47 | .RS +9 |
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| 48 | Indicates that the disks are permanently damaged and the file system |
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| 49 | information should be removed from the GPFS cluster data even if the disks |
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| 50 | cannot be marked as \fBavailable\fR. |
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| 51 | .RE |
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| 52 | .SH "Exit status" |
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| 53 | .PP |
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| 54 | .PP |
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| 55 | .RS +3 |
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| 56 | \fB0 |
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| 57 | \fR |
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| 58 | .RE |
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| 59 | .RS +9 |
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| 60 | Successful completion. |
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| 61 | .RE |
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| 62 | .PP |
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| 63 | .RS +3 |
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| 64 | \fBnonzero |
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| 65 | \fR |
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| 66 | .RE |
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| 67 | .RS +9 |
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| 68 | A failure has occurred. |
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| 69 | .RE |
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| 70 | .SH "Security" |
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| 71 | .PP |
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| 72 | You must have root authority to run the \fBmmdelfs\fR command. |
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| 73 | .PP |
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| 74 | You may issue the \fBmmdelfs\fR command from any node in the GPFS |
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| 75 | cluster. |
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| 76 | .PP |
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| 77 | When using the \fBrcp\fR and \fBrsh\fR commands for remote |
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| 78 | communication, a properly configured \fB.rhosts\fR file must exist |
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| 79 | in the root user's home directory on each node in the GPFS |
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| 80 | cluster. If you have designated the use of a different remote |
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| 81 | communication program on either the |
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| 82 | \fBmmcrcluster\fR |
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| 83 | or the |
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| 84 | \fBmmchcluster\fR command, you must |
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| 85 | ensure: |
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| 86 | .RS +3 |
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| 87 | .HP 3 |
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| 88 | 1. Proper authorization is granted to all nodes in the GPFS cluster. |
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| 89 | .HP 3 |
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| 90 | 2. The nodes in the GPFS cluster can communicate without the use of a |
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| 91 | password, and without any extraneous messages. |
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| 92 | .RE |
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| 93 | .SH "Examples" |
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| 94 | .PP |
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| 95 | To delete file system \fBfs0\fR, issue this command: |
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| 96 | .sp |
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| 97 | .nf |
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| 98 | mmdelfs fs0 |
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| 99 | .fi |
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| 100 | .sp |
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| 101 | .PP |
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| 102 | The system displays information similar to: |
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| 103 | .sp |
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| 104 | .nf |
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| 105 | mmdelfs: 6027-1366 Marking the disks as available |
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| 106 | GPFS: 6027-573 All data on following disks of fs0 will be destroyed: |
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| 107 | gpfs9nsd |
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| 108 | gpfs10nsd |
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| 109 | gpfs15nsd |
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| 110 | gpfs17nsd |
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| 111 | GPFS: 6027-574 Completed deletion of file system fs0. |
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| 112 | mmdelfs: 6027-1371 Propagating the changes to all affected |
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| 113 | nodes. This is an asynchronous process. |
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| 114 | .fi |
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| 115 | .sp |
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| 116 | .SH "See also" |
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| 117 | .PP |
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| 118 | mmcrfs Command |
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| 119 | .PP |
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| 120 | mmchfs Command |
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| 121 | .PP |
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| 122 | mmlsfs Command |
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| 123 | .SH "Location" |
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| 124 | .PP |
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| 125 | \fB/usr/lpp/mmfs/bin\fR |
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| 126 | .PP |
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