VxVM supports VxFS (veritas file system) but ufs does not. Hence, you cannot grow the fs in SDS. One more problem I found with SDS is that, If root is mirrored and if rootdisk goes down... in SDS : the system panicks and comes down and reboots through alternate / mirror disk (if configured in boot option in PROM) in VxVM: system continues normal function (no downtime) and you can set alert to get you mail/page and then replace the hdd online. Suhas Bhide "comp question" <compquestion@hotmail.c To: sunmanagers@sunmanagers.org om> cc: Sent by: Subject: Questions regarding SDS vs VXVA sunmanagers-admin@sunma nagers.org 02/08/02 05:45 AM I am wondering if anyone can give me some of the differences between SDS/ODS vs VXVA. Frm what I understand vxva allows for changes to be done on the subdisk level which basically allows to you to work with a full disk while ods requies everything to be done based on a pre partitioned disk. Also, it seems vxva allows for on the fly growht/shrinking of a file system if using vxfs. Are there any other differences? Also, I was under the impression that ODS used extent-based file syetsm while vxva used journal based file systems. However, I read a Veritas whitepaper that stated vxva "The VERITAS File System uses the much more efficient extent based allocation that dramatically improves the way in which large files are handled. Rather than linking indirect blocks of addresses, the VERITAS File System uses extent addresses which list a starting block address and a size. The disk blocks allocated for a file are stored in contiguous extents starting at the starting block address, and extending contiguously the number of blocks denoted by the size number." So which is it? Thanks. _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagers _______________________________________________ sunmanagers mailing list sunmanagers@sunmanagers.org http://www.sunmanagers.org/mailman/listinfo/sunmanagersReceived on Fri Feb 8 00:56:12 2002
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