The limitation existed in every Sun branded Engenio array we tested - 2510,2530,2540,6130,6540. This limitation is on volumes. You will not be able to present a lun larger than that magical 1.998TB. I think it is a combination of both in CAM and the firmware. Can't do it with sscs either... Warm and fuzzy: Sun engineers told me they would have a new release of CAM (and firmware bundle) in late June which would "resolve" this limitation. Or just do ZFS (or even SVM) setup like Bob and I did. Its actually pretty nice because the traffic will split to both controllers giving you theoretically more throughput so long as MPxIO is functioning properly. Only (minor) downside is parity is being transmitted from the host to the disks rather than living on the controller entirely. -Andy ________________________________
From: [EMAIL PROTECTED] on behalf of Torrey McMahon Sent: Mon 5/19/2008 1:59 PM To: Bob Friesenhahn Cc: zfs-discuss@opensolaris.org; Kenny Subject: Re: [zfs-discuss] ZFS and Sun Disk arrays - Opinions? Bob Friesenhahn wrote: > On Mon, 19 May 2008, Kenny wrote: > > >> Bob M.- Thanks for the heads up on the 2 (1.998) TN Lun limit. >> This has me a little concerned esp. since I have 1 TB drives being >> delivered! Also thanks for the scsi cache flushing heads up, yet >> another item to lookup! <grin> >> > > I am not sure if this LUN size limit really exists, or if it exists, > in which cases it actually applies. On my drive array, I created a > 3.6GB RAID-0 pool with all 12 drives included during the testing > process. Unfortunately, I don't recall if I created a LUN using all > the space. > > I don't recall ever seeing mention of a 2TB limit in the CAM user > interface or in the documentation. The Solaris LUN limit is gone if you're using Solaris 10 and recent patches. The array limit(s) are tied to the type of array you're using. (Which type is this again?) CAM shouldn't be enforcing any limits of its own but only reporting back when the array complains. _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
