Here's another puzzle: On this "slow" SPARC system, the J4200 drives appear to have their write-caches disabled. Since we're running HBA firmware 1.26.3.0, that appears to be the default at boot or hot-plug, according to:
http://sunsolve.sun.com/search/document.do?assetkey=1-66-248487-1 However, we have an X4150 using same Solaris-10U7 release, same HBA with same firware, connected to a J4400, and write-caches are all enabled on its disks. Same disks. Questions: (1) Why the difference between Solaris-SPARC and Solaris-x86 (or J4200 and J4400)? (2) All J4x00 disks are in whole-disk ZFS pools. Why is ZFS not enabling write caches on the SPARC system? (3) How do we enable the write caches on the SPARC, and make them stay that way across boots, power-cycles, and hot-plug events? Docs seem to indicate that cache settings done via "format -e" are not persistent in all cases. Thanks and regards, Marion _______________________________________________ storage-discuss mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/storage-discuss
