multipath - stable ?
Ours takes about thirty seconds with qlogic and emulex cards.
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Franc Carter <[email protected]> 12/12/03 18:36 PM >>>
Thanks,
can you give me a ballpark on 'high' >5 minutes ?
cheers
Quoted 5 lines · Steven Dake
The multipath code is simple and seems pretty stable to me.
There is one issue, in that failover can sometimes take a long time because of the SCSI layer's insistence upon executing error recovery. In the case of multipath I/O's, there is no need to error recover
before
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processing the I/O. Instead, once error is detected, failover, then start error recovery.
The SCSI layer doesn't do this currently, so failover times are high.
Thanks
-steveQuoted 5 lines · Franc Carter
Hi,
I've been using linux sofwtare raid for years and had no problems. We are about to install some disk systems that have dual contollers and am wondering wether multipath is as stable as the rest of
software
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raid ?
thanks
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Franc Carter Ph:61-2-8374-5071 Fax: 61-2-8374-5070 Systems Manager, SIRCA Ltd http://www.sirca.org.au/ DISCLAIMER: The contents of this email, inclusive of attachments, may be legally privileged and confidential. Any unauthorised use of the contents is expressly prohibited. If you have received this message in error or are not the intended recipient, you should destroy the email message along with any attachment(s). Unintended recipients of this email are prohibited from retaining, disclosing, distributing or using any information contained herein. This email is also subject to copyright. No part of it should be reproduced, adapted or transmitted without the written consent of the copyright owner. - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html