Thankyou to Kumaran and Aaaron for your help.
From: [email protected] [mailto:[email protected]] On Behalf Of Kumaran Rajaram Sent: Friday, June 23, 2017 3:37 PM To: gpfsug main discussion list <[email protected]> Subject: Re: [gpfsug-discuss] IO prioritisation / throttling? Hi John, >>We have a GPFS Setup using Fujitsu filers and Mellanox infiniband. >>The desire it to set up an environment for test and development where if IO >>‘runs wild’ it will not bring down >>the production storage. You may use the Spectrum Scale Quality of Service for I/O "mmchqos" command (details in link below) to define IOPS limits for the "others" as well as the "maintenance" class for the Dev/Test file-system "pools" (for e.g., mmchqos tds_fs --enable pool=*,other=10000IOPS, maintenance=5000IOPS). This way, the Test and Dev file-system/storage-pools IOPS can be limited/controlled to specified IOPS , giving higher priority to the production GPFS file-system/storage (with production_fs pool=* other=unlimited,maintenance=unlimited - which is the default). https://www.ibm.com/support/knowledgecenter/STXKQY_4.2.3/com.ibm.spectrum.scale.v4r23.doc/bl1adm_mmchqos.htm<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2FSTXKQY_4.2.3%2Fcom.ibm.spectrum.scale.v4r23.doc%2Fbl1adm_mmchqos.htm&data=01%7C01%7Cjohn.hearns%40asml.com%7C6921f7ac19a74a9c8e5908d4ba3ce6ae%7Caf73baa8f5944eb2a39d93e96cad61fc%7C1&sdata=BV0oxuDzdXu%2FGEyS1LmjsQqEf5T2vwT81ClWFZS1ReY%3D&reserved=0> https://www.ibm.com/support/knowledgecenter/STXKQY_4.2.3/com.ibm.spectrum.scale.v4r23.doc/bl1adm_qosio_describe.htm#qosio_describe<https://emea01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ibm.com%2Fsupport%2Fknowledgecenter%2FSTXKQY_4.2.3%2Fcom.ibm.spectrum.scale.v4r23.doc%2Fbl1adm_qosio_describe.htm%23qosio_describe&data=01%7C01%7Cjohn.hearns%40asml.com%7C6921f7ac19a74a9c8e5908d4ba3ce6ae%7Caf73baa8f5944eb2a39d93e96cad61fc%7C1&sdata=%2BnCF31KD1iuOmtSNWRW%2FnHBSPyiOsEMBd6zBUzU3588%3D&reserved=0> My two cents. Regards, -Kums From: John Hearns <[email protected]<mailto:[email protected]>> To: gpfsug main discussion list <[email protected]<mailto:[email protected]>> Date: 06/23/2017 04:14 AM Subject: [gpfsug-discuss] IO prioritisation / throttling? Sent by: [email protected]<mailto:[email protected]> ________________________________ I guess this is a rather ill-defined question, and I realise it will be open to a lot of interpretations. We have a GPFS Setup using Fujitsu filers and Mellanox infiniband. The desire it to set up an environment for test and development where if IO ‘runs wild’ it will not bring down the production storage. If anyone has a setup like this I would be interested in chatting with you. Is it feasible to create filesets which have higher/lower priority than others? Thankyou for any insights or feedback John Hearns -- The information contained in this communication and any attachments is confidential and may be privileged, and is for the sole use of the intended recipient(s). Any unauthorized review, use, disclosure or distribution is prohibited. Unless explicitly stated otherwise in the body of this communication or the attachment thereto (if any), the information is provided on an AS-IS basis without any express or implied warranties or liabilities. To the extent you are relying on this information, you are doing so at your own risk. If you are not the intended recipient, please notify the sender immediately by replying to this message and destroy all copies of this message and any attachments. 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