Migration and slow AFS performance
Daniel Mezhiborsky <[email protected]>
| Newsgroups | gmane.comp.file-systems.openafs.general |
|---|---|
| Message-ID | <MN2PR18MB2703B9173265F7FC0ECEEB74EC259@MN2PR18MB2703.namprd18.prod.outlook.com> |
Hello all, We currently have a relatively small (~250 users, 2TB) AFS cell that I am planning on retiring soon. I'd like to get our data out of AFS-space, but this is proving problematic because of performance issues. Our setup is one AFS server VM with iSCSI-attached /vicepa. For single large-file transfers with encryption off, I can get around 30MB/s read/write, but it seems like metadata operations are very slow, so copying our data (mostly home directories) directly from AFS with cp/rsync is taking a prohibitively long time. I see similar slowness with vos dump. We do take regular backups with vos backupsys and backup dump that take about 36 hours for full backups. Does anyone have any recommendations on problem areas to try and tune to get better performance or advice on a better way copy our data out of AFS? Thank you! Dan Mezhiborsky Cooper Union microLab Daniel Mezhiborsky | BE Electrical Engineering '23 The Cooper Union