Thanks for the affirmation. This is what I have been seeing/experiencing. As soon as I can empty the stgpool (5TB), I will define fixed volumes and see how much difference that makes. I am aware of the issue of single-threading the define/formats to not fragment them, however I wonder how much that really matters in a SAN? Zoltan Forray TSM Software & Hardware Administrator Virginia Commonwealth University UCC/Office of Technology Services [email protected] - 804-828-4807 Don't be a phishing victim - VCU and other reputable organizations will never use email to request that you reply with your password, social security number or confidential personal information. For more details visit http://infosecurity.vcu.edu/phishing.html
From: Markus Engelhard <[email protected]> To: [email protected] Date: 10/20/2010 09:20 AM Subject: [ADSM-L] Lousy performance on new 6.2.1.1 server with SAN/FILEDEVCLASS storage Sent by: "ADSM: Dist Stor Manager" <[email protected]> Hi Zoltan, my experience has been: use fixed size preformatted volumes, and be sure to format them sequentially, even if it seems to take a hell of a time. But then, it´s a one-time action and highly automated, so just don´t try to boost "performance" here. Make sure no one else is bogging perfs, SAN guys sometimes tend to put all kinds of unassorted loads on one storage array producing massive hot-spots during TSM activities. Kind regards, Markus -- Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen. Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten haben, informieren Sie bitte sofort den Absender und vernichten Sie diese E-Mail. Das unerlaubte Kopieren sowie die unbefugte Weitergabe dieser Mail oder von Teilen dieser Mail ist nicht gestattet. Wir haben alle verkehrsüblichen Maßnahmen unternommen, um das Risiko der Verbreitung virenbefallener Software oder E-Mails zu minimieren, dennoch raten wir Ihnen, Ihre eigenen Virenkontrollen auf alle Anhänge an dieser Nachricht durchzuführen. Wir schließen außer für den Fall von Vorsatz oder grober Fahrlässigkeit die Haftung für jeglichen Verlust oder Schäden durch virenbefallene Software oder E-Mails aus. Jede von der Bank versendete E-Mail ist sorgfältig erstellt worden, dennoch schließen wir die rechtliche Verbindlichkeit aus; sie kann nicht zu einer irgendwie gearteten Verpflichtung zu Lasten der Bank ausgelegt werden. ______________________________________________________________________ This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail or of parts hereof is strictly forbidden. We have taken precautions to minimize the risk of transmitting software viruses but nevertheless advise you to carry out your own virus checks on any attachment of this message. We accept no liability for loss or damage caused by software viruses except in case of gross negligence or willful behaviour. Any e-mail messages from the Bank are sent in good faith, but shall not be binding or construed as constituting any kind of obligation on the part of the Bank.
