[[Kategorie:Infrastruktur]]
== Hardware Info ==
* CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 5000+
* MEM: 4 GB
* HDD: 1x1TB / 1x2TB
== Software Info ==
Debian (x64) jessie/sid - Linux zaubert 3.13-1-amd64 #1 SMP Debian 3.13.10-1 (2014-04-15) x86_64 GNU/Linux
== Verwendungszweck ==
* mit BTRFS, iSCSI & Co. spielen
* (Freebert = iscsi target)
== Installation ==
PXE Netboot über Freebert DHCP/TFTP Bootimage (debian jessie/sid)
* sd(a/b)1 = 2 GB (SoftRaid1) Mirror für /boot (ext4)
* sd(a/b)2 = 2 GB SWAP
* sdc1 = iscsi BTRFS für / (root)
Setup bis zum Abschluss durchführen, nun muss noch kurz etwas manuell nachgebessert werden:
Derzeit setzt jessie/sid (kernel 3.13-1) das iSCSI Portal falsch! (fehlerhaftes booten führt zur initramfs/busybox)
{{NiftyDiv|
Farbe=#f4b9c4|
Inhalt=
'''ISCSI_TARGET_GROUP="-1"'''
}}
=== initramfs korrigieren ===
NICHT abschließen sondern zurück ins Menü und Shell (BusyBox) auswählen
mount -o sysfs sys /target/sys
mount -o bind /dev /target/dev
mount -t proc none /target/proc
chroot /target /bin/bash
vi /etc/iscsi/iscsi.initramfs
ISCSI_TARGET_GROUP="c3d2"
update-initramfs -u -k all
update-initramfs -u -k all -v | grep iscsi
reboot
== Festplattenschemata ==
df -H
Dateisystem Größe Benutzt Verf. Verw% Eingehängt auf
/dev/sdc1 27G 1,6G 24G 7% /
udev 11M 0 11M 0% /dev
tmpfs 416M 357k 416M 1% /run
tmpfs 5,3M 0 5,3M 0% /run/lock
tmpfs 1,7G 0 1,7G 0% /run/shm
/dev/md0 2,0G 31M 1,8G 2% /boot
cat /proc/mdstat
Personalities : [raid1]
md0 : active raid1 sda1[0] sdb1[1]
1950720 blocks super 1.2 [2/2] [UU]
unused devices:
lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 931,5G 0 disk
├─sda1 8:1 0 1,9G 0 part
│ └─md0 9:0 0 1,9G 0 raid1 /boot
└─sda2 8:2 0 1,9G 0 part [SWAP]
sdb 8:16 0 1,8T 0 disk
├─sdb1 8:17 0 1,9G 0 part
│ └─md0 9:0 0 1,9G 0 raid1 /boot
└─sdb2 8:18 0 1,9G 0 part [SWAP]
sdc 8:32 0 25G 0 disk
└─sdc1 8:33 0 25G 0 part
sdd 8:48 0 25G 0 disk
sde 8:64 0 25G 0 disk
sdf 8:80 0 25G 0 disk
sr0 11:0 1 1024M 0 rom
dmesg | grep sda
[ 1.080771] sd 4:0:0:0: [sda] 1953523055 512-byte logical blocks: (1.00 TB/931 GiB)
[ 1.080830] sd 4:0:0:0: [sda] Write Protect is off
[ 1.080833] sd 4:0:0:0: [sda] Mode Sense: 00 3a 00 00
[ 1.080857] sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1.108470] sda: sda1 sda2
[ 1.108775] sd 4:0:0:0: [sda] Attached SCSI disk
[ 10.350728] md: bind
[ 10.353799] disk 0, wo:0, o:1, dev:sda1
[ 16.314533] Adding 1952764k swap on /dev/sda2. Priority:-1 extents:1 across:1952764k
dmesg | grep sdb
[ 1.080762] sd 5:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB)
[ 1.080766] sd 5:0:0:0: [sdb] 4096-byte physical blocks
[ 1.080823] sd 5:0:0:0: [sdb] Write Protect is off
[ 1.080827] sd 5:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[ 1.080851] sd 5:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1.105590] sdb: sdb1 sdb2
[ 1.105925] sd 5:0:0:0: [sdb] Attached SCSI disk
[ 10.350559] md: bind
[ 10.353801] disk 1, wo:0, o:1, dev:sdb1
[ 16.323616] Adding 1952764k swap on /dev/sdb2. Priority:-2 extents:1 across:1952764k
dmesg | grep sdc
[ 9.292166] sd 6:0:0:0: [sdc] 52428800 512-byte logical blocks: (26.8 GB/25.0 GiB)
[ 9.293177] sd 6:0:0:0: [sdc] Write Protect is off
[ 9.293182] sd 6:0:0:0: [sdc] Mode Sense: 57 00 00 08
[ 9.294860] sd 6:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 9.531531] sdc: sdc1
[ 9.534631] sd 6:0:0:0: [sdc] Attached SCSI disk
[ 10.875018] btrfs: device label system devid 1 transid 139 /dev/sdc1
[ 13.448486] btrfs: device label system devid 1 transid 139 /dev/sdc1
[ 13.511497] btrfs: device label system devid 1 transid 139 /dev/sdc1
btrfs filesystem show /
Label: 'system' uuid: a231f9ab-8a92-4ab5-b9b2-7365b637fdbe
Total devices 1 FS bytes used 1.36GiB
devid 1 size 25.00GiB used 4.04GiB path /dev/sdc1
Btrfs v3.14.1
== Kernel mit iSCSI ==
[ 8.779815] Loading iSCSI transport class v2.0-870.
[ 8.781499] iscsi: registered transport (tcp)
[ 9.037268] scsi6 : iSCSI Initiator over TCP/IP
[ 9.290955] scsi 6:0:0:0: Direct-Access FREEBSD CTLDISK 0001 PQ: 0 ANSI: 5
[ 9.291160] sd 6:0:0:0: Attached scsi generic sg3 type 0
[ 9.291897] scsi 6:0:0:1: Direct-Access FREEBSD CTLDISK 0001 PQ: 0 ANSI: 5
[ 9.292080] sd 6:0:0:1: Attached scsi generic sg4 type 0
[ 9.292166] sd 6:0:0:0: [sdc] 52428800 512-byte logical blocks: (26.8 GB/25.0 GiB)
[ 9.292618] scsi 6:0:0:2: Direct-Access FREEBSD CTLDISK 0001 PQ: 0 ANSI: 5
[ 9.292737] sd 6:0:0:1: [sdd] 52428800 512-byte logical blocks: (26.8 GB/25.0 GiB)
[ 9.292830] sd 6:0:0:2: Attached scsi generic sg5 type 0
[ 9.293177] sd 6:0:0:0: [sdc] Write Protect is off
[ 9.293182] sd 6:0:0:0: [sdc] Mode Sense: 57 00 00 08
[ 9.293214] scsi 6:0:0:3: Direct-Access FREEBSD CTLDISK 0001 PQ: 0 ANSI: 5
[ 9.293380] sd 6:0:0:3: Attached scsi generic sg6 type 0
[ 9.294354] sd 6:0:0:2: [sde] 52428800 512-byte logical blocks: (26.8 GB/25.0 GiB)
[ 9.294838] sd 6:0:0:3: [sdf] 52428800 512-byte logical blocks: (26.8 GB/25.0 GiB)
[ 9.294860] sd 6:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 9.294982] sd 6:0:0:1: [sdd] Write Protect is off
[ 9.294985] sd 6:0:0:1: [sdd] Mode Sense: 57 00 00 08
[ 9.515170] sd 6:0:0:2: [sde] Write Protect is off
[ 9.515178] sd 6:0:0:2: [sde] Mode Sense: 57 00 00 08
[ 9.515345] sd 6:0:0:3: [sdf] Write Protect is off
[ 9.515348] sd 6:0:0:3: [sdf] Mode Sense: 57 00 00 08
[ 9.515364] sd 6:0:0:1: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 9.515874] sd 6:0:0:2: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 9.515882] sd 6:0:0:3: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 9.531531] sdc: sdc1
[ 9.534631] sd 6:0:0:0: [sdc] Attached SCSI disk
[ 9.541120] sde:
[ 9.541149] sdd:
[ 9.541255] sdf:
[ 9.544132] sd 6:0:0:1: [sdd] Attached SCSI disk
[ 9.544788] sd 6:0:0:3: [sdf] Attached SCSI disk
[ 9.544926] sd 6:0:0:2: [sde] Attached SCSI disk
== BTRFS RAID erstellen ==
== Log ==
* 02.05.2014 - einfaches Basis Setup