Hi everybody, Some time ago I asked the people on this list for their performance figures for the protect stgpool (see my mail down below). I received two reactions, both indicated that their protect stgpool is also below 1 TB/h. I'm trying to find out if this is related to the protect stgpool process itself, or if there is another issue here. My first tests show that skipping the protect stgpool altogether and just running a replicate node preforms much better, in fact sometimes 6 times faster! I already have a case open at IBM for this, but it seems to get stuck on the discussion about hardware performance issues, so I'm trying to generate some more proof now on a test environment. I'm running 6 servers with directory containers, most of them have a daily ingest of 10 to 20 TB, so it's currently impossible to run a protect stgpool to completion... Has anybody tried skipping the protect stgpool too, just to see how the node replication performs? Thanks in advance for your reply.
Kind regards, Eric van Loon Air France/KLM Storage & Backup From: Loon, Eric van (ITOP NS) - KLM Sent: dinsdag 12 oktober 2021 13:28 To: ADSM-L <ADSM-L@VM.MARIST.EDU> Subject: Compare protect stgpool performance Hi everybody, We are using a Blueprint-like server setup with two servers, using cross node replication and storage pool protection. I'm not very happy with our protect stgpool performance (approx. 0.5 TB/h) and I like to compare it with other users. So if you are managing a server which is using protect stgpool to protect the data to another server, can you please issue the following command and send me the results: q act begind=-1 msg=4980 Thank you very much for your help in advance. Kind regards, Eric van Loon Air France/KLM Storage & Backup ******************************************************** For information, services and offers, please visit our web site: http://www.klm.com. This e-mail and any attachment may contain confidential and privileged material intended for the addressee only. If you are not the addressee, you are notified that no part of the e-mail or any attachment may be disclosed, copied or distributed, and that any other action related to this e-mail or attachment is strictly prohibited, and may be unlawful. If you have received this e-mail by error, please notify the sender immediately by return e-mail, and delete this message. Koninklijke Luchtvaart Maatschappij NV (KLM), its subsidiaries and/or its employees shall not be liable for the incorrect or incomplete transmission of this e-mail or any attachments, nor responsible for any delay in receipt. Koninklijke Luchtvaart Maatschappij N.V. (also known as KLM Royal Dutch Airlines) is registered in Amstelveen, The Netherlands, with registered number 33014286 ********************************************************
