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- Newsgroups: comp.sys.sun.hardware
- Path: sparky!uunet!ferkel.ucsb.edu!taco!gatech!emory!athena.cs.uga.edu!weinri
- From: weinri@athena.cs.uga.edu (Kevin Weinrich)
- Subject: What are trade-offs between bytes/inode & #cyl/grp?
- Message-ID: <1992Nov10.214734.29457@athena.cs.uga.edu>
- Organization: University of Georgia, Athens
- Date: Tue, 10 Nov 1992 21:47:34 GMT
- Lines: 15
-
- In running newfs on the first (small) partition on my new
- Wren VII 1.2G drive (using default parameters) I get the message:
- Warning: inode blocks/cyl group (100) >= data blocks (75) in last
- cylinder group. This implies 1200 sector(s) cannot be
- allocated.
- So, I cranked the bytes/inode parameter up to 4096 (from 2048),
- which got rid of the error msg. Then I tried it w/ 24 cylinders/
- group (instead of 16) and 2048 b/i. That also got rid of the
- warning (and reduced the # of cyl. groups to 4 from 6, lowering the
- # of super-blocks). So which method should I use -- what are the
- trade-offs? I know the basics of disk layout, but am not familiar w/
- inodes and groups.
-
- Thanks for any pointers,
- Kevin Weinrich e-mail preferred at: kbw@hermes.ath.epa.gov
-