-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hi Martin, Are you using the stock sata_mv driver that uses libata or the proprietary marvell driver v340? We have been using both of them, both with their fair share of problems. I have seen extremely poor performance from the sata_mv driver, and the sdparm commands for turning off WCE are not honored. With the proprietary mv_sata driver the performance is pretty good under RHEL4, but also does not seem to honor sdparm commands for disabling WCE bit. After doing a little work to port this driver to RHEL5 the driver looks to be completely broken. Currently we do not have a patch for disabling the WCE bit for either driver. IMHO I think it would be best to try and improve the sata_mv driver in the RHEL kernel since it seems the proprietary driver has been abandoned. If anyone else knows of another linux project for the Marvell driver I would be happy to hear about it.
- -Herb Martin Gasthuber wrote: > Hi, > > we are in the process of configuring a thumper (Sun X4500) running > RHEL 4.5 as an OSS/OST - for this we need a patch for the Sun-Marvell > driver to disable the disk write cache - did anybody has this patch ??? > > best regards, > Martin > > _______________________________________________ > Lustre-discuss mailing list > [email protected] > https://mail.clusterfs.com/mailman/listinfo/lustre-discuss -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org iD8DBQFHKhmOP/62XqEEbMYRChJBAJ9cJltz29FqXxJYJ1uaSRsULG5MdgCeITqf XZR7yjCl4tk2ZkqpjUxmgko= =IjDc -----END PGP SIGNATURE----- _______________________________________________ Lustre-discuss mailing list [email protected] https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
