So not sue if this is the correct list to email to or not. I am curious to know on my machine I have two hard drive (c8t0d0 and c8t1d0). Can some one explain to me what this exactly means? What does "c8" "t0" and "d0" actually mean. I might have to go back to solaris 101 to understand what this all means. Thanks, -Beau -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20100714/29191c32/attachment.html>
Beau, Not the right list but C=controller, T=target (SCSI), D= disk number (or LUN), S=slice number. Google in "solaris disk names" yielded lots of good results like: http://initialprogramload.blogspot.com/2008/07/how-solaris-disk-device-names-work.html ..Remco On 7/14/10 11:07 PM, Beau J. Bechdol wrote:> So not sue if this is the correct list to email to or not. I am > curious to know on my machine I have two hard drive (c8t0d0 and > c8t1d0). Can some one explain to me what this exactly means? What does > "c8" "t0" and "d0" actually mean. I might have to go back to solaris > 101 to understand what this all means. > > Thanks, > > -Beau > > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20100714/a8d55163/attachment.html>
On Wed, Jul 14, 2010 at 03:07:59PM -0600, Beau J. Bechdol wrote:> So not sue if this is the correct list to email to or not. I am curious to > know on my machine I have two hard drive (c8t0d0 and c8t1d0). Can some one > explain to me what this exactly means? What does "c8" "t0" and "d0" actually > mean. I might have to go back to solaris 101 to understand what this all > means.The ''c'' is for "controller", and the number that follows is one that is assigned to the given controller (not necessarily on a first-come- first-served 0-based basis!). The controller number should be considered unpredictable at install time. Once installed it shouldn''t change, except for removable disks, where the controller number might vary according to which slot you plugged the disk into. The ''t'' is for "target". The ''d'' is for "disk" -- think LUN. The ''p'' is for "partition", and is used in Solaris on x86. The ''s'' is for "slice". Slices are like partitions, but only used in SOLARIS2 partitions, of which you''re allowed no more than one per-disk. Nico --
On Wed, Jul 14, 2010 at 4:07 PM, Beau J. Bechdol <bbechdol at gmail.com> wrote:> So not sue if this is the correct list to email to or not. I am curious to > know on my machine I have two hard drive (c8t0d0 and c8t1d0). Can some one > explain to me what this exactly means? What does "c8" "t0" and "d0" actually > mean. I might have to go back to solaris 101 to understand what this all > means. > > Thanks, > > -Beau > > >Controller 8 (this could be a sata/fc/pata card) Target 0 (pretty self explanatory... it''s the first target on that controller) Disk 0 (first disk at the end of that target) http://www.idevelopment.info/data/Unix/Solaris/SOLARIS_UnderstandingDiskDeviceFiles.shtml --Tim -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20100714/b8c50979/attachment.html>
Hi Beau, The naming breaks down like this: c=controller t=target d=disk Some controllers use a target to provide a unique address for each disk. Others do not use a target and those disks would be named like c8d0 or c8d1. The graphic in Figure 5-1 here is slightly askew but describes Solaris disk naming conventions: http://docs.sun.com/app/docs/doc/817-5093/devaccess-90138?l=en&a=view Thanks, Cindy On 07/14/10 15:07, Beau J. Bechdol wrote:> So not sue if this is the correct list to email to or not. I am curious > to know on my machine I have two hard drive (c8t0d0 and c8t1d0). Can > some one explain to me what this exactly means? What does "c8" "t0" and > "d0" actually mean. I might have to go back to solaris 101 to understand > what this all means. > > Thanks, > > -Beau > > > ------------------------------------------------------------------------ > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss at opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
Thank you all for the information! I do appreciate it! -Beau -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mail.opensolaris.org/pipermail/zfs-discuss/attachments/20100714/d08b4adb/attachment.html>