[gpfsug-discuss] mass recall from on-prem COS using a policy

Tue Jul 19 16:24:40 BST 2022

Thank you.

Ill-placed on ESS or COS?

I understood restriping was for NSDs, so that would be on our ESS not COS?
The direction I want to move the files is from COS to ESS.

We do not have AFM enabled, we are using TCT.

From: gpfsug-discuss <gpfsug-discuss-bounces at gpfsug.org> On Behalf Of IBM Spectrum Scale
Sent: 18 July 2022 20:35
To: gpfsug main discussion list <gpfsug-discuss at gpfsug.org>; Venkateswara R Puvvada <vpuvvada at in.ibm.com>
Subject: Re: [gpfsug-discuss] mass recall from on-prem COS using a policy

 "KB_Ill" shows how much data are ill placed or ill replicated.  They can be resolved by mmrestripefs or mmrestripefile.
Copying to AFM team regarding recall in AFM-COS environment.

Regards, The Spectrum Scale (GPFS) team

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[Inactive hide details for "Paul Ward" ---07/12/2022 11:40:52 AM---Hi all, I need to recall from on-prem COS a folder with subfo]"Paul Ward" ---07/12/2022 11:40:52 AM---Hi all, I need to recall from on-prem COS a folder with subfolders and files, approximately 4600 fil

From: "Paul Ward" <p.ward at nhm.ac.uk<mailto:p.ward at nhm.ac.uk>>
To: "gpfsug-discuss at gpfsug.org<mailto:gpfsug-discuss at gpfsug.org>" <gpfsug-discuss at gpfsug.org<mailto:gpfsug-discuss at gpfsug.org>>
Date: 07/12/2022 11:40 AM
Subject: [EXTERNAL] [gpfsug-discuss] mass recall from on-prem COS using a policy
Sent by: "gpfsug-discuss" <gpfsug-discuss-bounces at gpfsug.org<mailto:gpfsug-discuss-bounces at gpfsug.org>>

________________________________

Hi all, I need to recall from on-prem COS a folder with subfolders and files, approximately 4600 files making up 656G. We have a policy that runs every 30 mins, and I added this line to it: ‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍
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Hi all,

I need to recall from on-prem COS a folder with subfolders and files, approximately 4600 files making up 656G.
We have a policy that runs every 30 mins, and I added this line to it:

RULE 'migrate_iac-workspace_Chem-labs' MIGRATE FROM POOl 'migrate' TO POOL 'data' WHERE PATH_NAME LIKE '/gpfs/nhmfsa/bulk/share/workspace/iac-workspace/Chem_Labs/%'

Migrate is an external pool
RULE EXTERNAL POOL 'migrate' EXEC '/usr/lpp/mmfs/bin/mmcloudgateway files' OPTS '-F' ESCAPE '% -'

And data is the default placement pool
RULE 'Placement' SET POOL 'data'

When it runs it identifies matching files:
Rule#     Hit_Cnt               KB_Hit                 Chosen                KB_Chosen         KB_Ill    Rule
13          4846                     2491152              4846                     2491152              7056      RULE      'migrate_iac-workspace_Chem-labs'       MIGRATE  FROM      POOL  'migrate'  TO  POOL  'data'     WHERE(.)

I can’t find what ‘KB_ Ill’ means but nothing is migrating.

Migrations in other policies work, but this is a ‘recall’ policy.
>From this document https://www.ibm.com/docs/en/spectrum-scale/5.1.3?topic=pools-migrate-recall-external<https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ibm.com%2Fdocs%2Fen%2Fspectrum-scale%2F5.1.3%3Ftopic%3Dpools-migrate-recall-external&data=05%7C01%7Cp.ward%40nhm.ac.uk%7Ca34ce171bfa64681616808da68f543f1%7C73a29c014e78437fa0d4c8553e1960c1%7C1%7C0%7C637937700273967446%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C2000%7C%7C%7C&sdata=WmkkYdeQwjIZwqSS3UjEJwBwrmmzA0XP6o8QhQ1JQOM%3D&reserved=0>
It suggests it should be invoked as a recall.

Any ideas?

Kindest regards,
Paul

Paul Ward
TS Infrastructure Architect
Natural History Museum
T: 02079426450
E: p.ward at nhm.ac.uk<mailto:p.ward at nhm.ac.uk>
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