Lev Serebryakov wrote:
 (4) FreeBSD 7 + ZFS "zraid". And again: stability. Too many messages
     about locks, crashes, etc. Code is experemental. Is it only for
     32 bit systems?

Recently I installed a new server in my local network.

[media butcher]# uname -rsm
FreeBSD 8.0-CURRENT amd64
[media butcher]# zpool list
NAME                    SIZE    USED   AVAIL    CAP  HEALTH     ALTROOT
video                  3,16T   2,01T   1,14T    63%  ONLINE     -
[media butcher]# zpool status
  pool: video
 state: ONLINE
 scrub: none requested
config:

        NAME               STATE     READ WRITE CKSUM
        video              ONLINE       0     0     0
          raidz1           ONLINE       0     0     0
            label/DISK_01  ONLINE       0     0     0
            label/DISK_02  ONLINE       0     0     0
            label/DISK_03  ONLINE       0     0     0
            label/DISK_04  ONLINE       0     0     0
            label/DISK_05  ONLINE       0     0     0
            label/DISK_06  ONLINE       0     0     0
            label/DISK_07  ONLINE       0     0     0

errors: No known data errors
[media butcher]# sysctl hw.physmem
hw.physmem: 2136186880
[media butcher]# cat /boot/loader.conf
zfs_load="YES"
vm.kmem_size="1342177280"       # 1280 MB
vm.kmem_size_max="1342177280"   # 1280 MB

So, server works very nice on moderate load with
vsftpd (with sendfile enabled) - 40..70 users online.

--
WBR, Andrey V. Elsukov
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