hi! I"m creating a storage based on ZFS file system. I have 3 hard disk of 500 GB capacity, totaling to almost 1.4 TB. now when i create a raidz pool with these 3 disks zpool create mypool raidz c0d0 c0d1 c1d1 my understanding & what i''ve read from zfs best practices says, that i should get approx 1 TB as Storage space, but i get 1.4 TB as the storage. any ideas what am i doing wrong. for reference : info from zfs best practices: A RAID-Z configuration with N disks of size X with P parity disks can hold approximately (N-P)*X bytes and can withstand P device(s) failing before data integrity is compromised. Start a single-parity RAID-Z (raidz) configuration at 3 disks (2+1) Arun Tomar blog: http://www.linuxguy.in/ -- This message posted from opensolaris.org
On 10 November, 2008 - arun tomar sent me these 0,9K bytes:> hi! > > I"m creating a storage based on ZFS file system. I have 3 hard disk of 500 GB capacity, totaling to almost 1.4 TB. > > now when i create a raidz pool with these 3 disks > > zpool create mypool raidz c0d0 c0d1 c1d1 > > my understanding & what i''ve read from zfs best practices says, that i > should get approx 1 TB as Storage space, but i get 1.4 TB as the > storage.Says who? ''zpool list'' shows how much disk space is available (not counting redundancy stuff) ''zfs list'' and ''df'' shows how much you can store there /Tomas -- Tomas ?gren, stric at acc.umu.se, http://www.acc.umu.se/~stric/ |- Student at Computing Science, University of Ume? `- Sysadmin at {cs,acc}.umu.se