I have a cluster with two filesystems and I need to migrate a fileset from one to the other. I would normally do this with tar and rsync but I decided to experiment with AFM following the document below. In my test setup I'm finding that hardlinks are not preserved by the migration. Is that expected or am I doing something wrong?
I'm using gpfs-5.0.5.4. Thanks. --Mike -- Michael J. Dugan Manager of Systems Programming and Administration Research Computing Services | IS&T | Boston University 617-358-0030 [email protected] http://www.bu.edu/tech ________________________________ From: [email protected] <[email protected]> on behalf of Venkateswara R Puvvada <[email protected]> Sent: Monday, November 23, 2020 9:41 PM To: gpfsug main discussion list <[email protected]> Cc: [email protected] <[email protected]> Subject: Re: [gpfsug-discuss] Migrate/syncronize data from Isilon to Scale over NFS? AFM provides near zero downtime for migration. As of today, AFM migration does not support ACLs or other EAs migration from non scale (GPFS) source. https://www.ibm.com/support/knowledgecenter/STXKQY_5.1.0/com.ibm.spectrum.scale.v5r10.doc/bl1ins_uc_migrationusingafmmigrationenhancements.htm ~Venkat ([email protected]) From: "Frederick Stock" <[email protected]> To: [email protected] Cc: [email protected] Date: 11/17/2020 03:14 AM Subject: [EXTERNAL] Re: [gpfsug-discuss] Migrate/syncronize data from Isilon to Scale over NFS? Sent by: [email protected] ________________________________ Have you considered using the AFM feature of Spectrum Scale? I doubt it will provide any speed improvement but it would allow for data to be accessed as it was being migrated. Fred __________________________________________________ Fred Stock | IBM Pittsburgh Lab | 720-430-8821 [email protected] ----- Original message ----- From: Andi Christiansen <[email protected]> Sent by: [email protected] To: "[email protected]" <[email protected]> Cc: Subject: [EXTERNAL] [gpfsug-discuss] Migrate/syncronize data from Isilon to Scale over NFS? Date: Mon, Nov 16, 2020 2:44 PM Hi all, i have got a case where a customer wants 700TB migrated from isilon to Scale and the only way for him is exporting the same directory on NFS from two different nodes... as of now we are using multiple rsync processes on different parts of folders within the main directory. this is really slow and will take forever.. right now 14 rsync processes spread across 3 nodes fetching from 2.. does anyone know of a way to speed it up? right now we see from 1Gbit to 3Gbit if we are lucky(total bandwidth) and there is a total of 30Gbit from scale nodes and 20Gbits from isilon so we should be able to reach just under 20Gbit... if anyone have any ideas they are welcome! Thanks in advance Andi Christiansen _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss _______________________________________________ gpfsug-discuss mailing list gpfsug-discuss at spectrumscale.org http://gpfsug.org/mailman/listinfo/gpfsug-discuss
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