After a few years of having a old Proliant ML370 Server with a Pentium III i decide to go with a AMD Athlon DualCore and install KVM for having some virtual Servers.
But there where some problems, as usual.
[root@cetus ~]# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 6 cpu MHz : 997.345 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1996.56processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 8 model name : Pentium III (Coppermine) stepping : 6 cpu MHz : 997.345 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 mmx fxsr sse bogomips : 1993.38
[root@cetus ~]#
As always I start with a Howto from Howtoforge.com, really no Problem straight forward. I decide to go with btrfs instead of ext4 for my OS Filesystem and with xfs for my Data Filesystem.
After the Installation i begun to copy my data over, but in the morning the process stuck, checking the RAID Controller logs see that one Disk is brocken. Also after calling the Support I learnd that my Firmeware from the new WD 2 TB Disk is broken and need update !
[root@enif ~]# tw_cli /c6 show alarmsCtl Date Severity AEN Message
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So I send my Disk back and repair the xfs with xfsrepair -L /dev/? and restart the copy process. Unfortunately at the next morning the copy process stop again with lot of btrfs bad sector messages at the host console!
Jul 5 00:57:08 enif kernel: sd 6:0:1:0: [sdb] Device not ready Jul 5 00:57:08 enif kernel: sd 6:0:1:0: [sdb] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE Jul 5 00:57:08 enif kernel: sd 6:0:1:0: [sdb] Sense Key : Not Ready [current] Jul 5 00:57:08 enif kernel: sd 6:0:1:0: [sdb] Add. Sense: Logical unit not ready, cause not reportable Jul 5 00:57:08 enif kernel: sd 6:0:1:0: [sdb] CDB: Write(10): 2a 00 3e 86 31 ff 00 00 18 00 Jul 5 00:57:08 enif kernel: end_request: I/O error, dev sdb, sector 1048982015At the End I’m reinstalling the complete Server and try to fix the btrfs Filesystem but nothing is left:
[root@enif ~]# btrfsck /dev/mapper/vg_local-lv_virt Segmentation fault [root@enif ~]#So I lost my complete Virtual Servers –> Not Ready to use!
Fedora 13 KVM Howto:
http://www.howtoforge.com/virtualization-with-kvm-on-a-fedora-13-server
Fedora 13 Virtualization Documentation:
http://docs.fedoraproject.org/en-US/Fedora/13/html/Virtualization_Guide/index.html
libvirt Caching:
http://wiki.libvirt.org/page/UbuntuKVMWalkthrough
Btrfs problem: