Date: Fri, 14 Mar 2008 14:52:51 -0500 From: David Wassman <DWassman@davismonk.com> To: <freebsd-questions@freebsd.org> Subject: Sync or Soft Updates or gjournal for fileserver Message-ID: <4EFE19E52F4F844D997F24D759C4A23B038755E1@etg2.etg.local>
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All, Here is the system specs: OS: FreeBSD-amd64 7.0-Release Processors: 2 Intel Xeon 5400 Quads Storage: ~438 GB RAID 5 (LSI 85016E & 4 Seagate 15K Cheetahs) My question is with this setup (Have not assembled or installed yet), for a fileserver running Samba to share in mixed environment, what would be better, sync, soft updates or gjournal. From my understanding, sync is the most secure as far as data integrity but suffers from performance. Soft Updates is a mix between the two but from reading Lucas's Absolute FreeBSD, he says that it is best for drives under 80GB. Gjournal sounds like the answer but it is new and from my understand still considered experimental. As a file server, I would like to keep snapshots for quick recovery of files but if I am not mistaken this requires Soft Updates (I have additional backups, but I would like to run them off snapshots to keep the system available). Does gjournal support snapshots as well? Will Soft Updates work fine with this setup? This is for a production environment (it is replacing a Windows 2000 fileserver), so would sync be the best bet to ensure data integrity over the benefits of soft updates and gjournal?=20 I have a fair amount of experience with FreeBSD (5+ years) and would normally just use Soft Updates but with the size of the storage involved, new features in 7, and both data integrity and performance being a concern, I am just not sure which would be best here.=20 Any advice would be helpful.=20 David Wassman, MCP Net+ IT Network Administrator Davis, Monk & Company (800) 344-5034 (352) 372-6300 (352) 375-1583 FAX The information contained in this electronic message is legally privileged and confidential under applicable law, and is intended only for the use of the individual or entity named above. If you are not the intended recipient, you are hereby notified that any dissemination, copying or disclosure of this communication is strictly prohibited. If you have received this communication in error, please notify Davis, Monk & Company (352) 372-6300 and delete this communication immediately without reading it, making any copies of it or distributing it. =20
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