376 lines
11 KiB
Plaintext
376 lines
11 KiB
Plaintext
[[Kategorie:Infrastruktur]]
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== Hardware Info ==
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* CPU: AMD Athlon(tm) 64 X2 Dual Core Processor 5000+
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* MEM: 4 GB
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* HDD: 1x1TB / 1x2TB
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== Software Info ==
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Debian (x64) jessie/sid - Linux zaubert 3.13-1-amd64 #1 SMP Debian 3.13.10-1 (2014-04-15) x86_64 GNU/Linux
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== Verwendungszweck ==
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* mit BTRFS, iSCSI & Co. spielen
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== Freebert iSCSI Target ==
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<source lang=bash>
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vi /etc/ctl.conf
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target iqn.2014-01.de.c3d2.hq:zaubert {
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auth-group no-authentication
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portal-group c3d2
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alias "ZauBert BTRFS"
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lun 0 {
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path /iscsi/target2-0
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size 25G
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}
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lun 1 {
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path /iscsi/target2-1
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size 25G
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}
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lun 2 {
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path /iscsi/target2-2
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size 25G
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}
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lun 3 {
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path /iscsi/target2-3
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size 25G
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}
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}
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</source>
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== Installation ==
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PXE Netboot über Freebert DHCP/TFTP Bootimage (debian jessie/sid)
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* sd(a/b)1 = 2 GB (SoftRaid1) Mirror für /boot (ext4)
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* sd(a/b)2 = 2 GB SWAP
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* sdc1 = iscsi BTRFS für / (root)
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Setup bis zum Abschluss durchführen, nun muss noch kurz etwas manuell nachgebessert werden:
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Derzeit setzt jessie/sid (kernel 3.13-1) das iSCSI Portal falsch! (fehlerhaftes booten führt zur initramfs/busybox)
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{{NiftyDiv|
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Farbe=#f4b9c4|
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Inhalt=
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'''ISCSI_TARGET_GROUP="-1"'''
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}}
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=== initramfs ===
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NICHT abschließen, sondern zurück ins Menü und Shell (BusyBox) auswählen
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<source lang=bash>
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mount -t sysfs sys /target/sys
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mount -o bind /dev /target/dev
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mount -t proc none /target/proc
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</source>
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<source lang=bash>
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chroot /target /bin/bash
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</source>
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<source lang=bash>
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vi /etc/iscsi/iscsi.initramfs
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</source>
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<pre>
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ISCSI_TARGET_GROUP="c3d2"
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</pre>
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<source lang=bash>
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update-initramfs -u -k all
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update-initramfs -u -k all -v | grep iscsi
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</source>
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<source lang=bash>
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reboot
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</source>
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== Festplattenschemata ==
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<source lang=bash>
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df -H
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Dateisystem Größe Benutzt Verf. Verw% Eingehängt auf
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/dev/sdc1 27G 1,6G 24G 7% /
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udev 11M 0 11M 0% /dev
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tmpfs 416M 357k 416M 1% /run
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tmpfs 5,3M 0 5,3M 0% /run/lock
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tmpfs 1,7G 0 1,7G 0% /run/shm
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/dev/md0 2,0G 31M 1,8G 2% /boot
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cat /proc/mdstat
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Personalities : [raid1]
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md0 : active raid1 sda1[0] sdb1[1]
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1950720 blocks super 1.2 [2/2] [UU]
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unused devices: <none>
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lsblk
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NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
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sda 8:0 0 931,5G 0 disk
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├─sda1 8:1 0 1,9G 0 part
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│ └─md0 9:0 0 1,9G 0 raid1 /boot
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└─sda2 8:2 0 1,9G 0 part [SWAP]
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sdb 8:16 0 1,8T 0 disk
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├─sdb1 8:17 0 1,9G 0 part
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│ └─md0 9:0 0 1,9G 0 raid1 /boot
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└─sdb2 8:18 0 1,9G 0 part [SWAP]
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sdc 8:32 0 25G 0 disk
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└─sdc1 8:33 0 25G 0 part
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sdd 8:48 0 25G 0 disk
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sde 8:64 0 25G 0 disk
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sdf 8:80 0 25G 0 disk
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sr0 11:0 1 1024M 0 rom
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</source>
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<source lang=bash>
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dmesg | grep sda
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[ 1.080771] sd 4:0:0:0: [sda] 1953523055 512-byte logical blocks: (1.00 TB/931 GiB)
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[ 1.080830] sd 4:0:0:0: [sda] Write Protect is off
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[ 1.080833] sd 4:0:0:0: [sda] Mode Sense: 00 3a 00 00
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[ 1.080857] sd 4:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
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[ 1.108470] sda: sda1 sda2
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[ 1.108775] sd 4:0:0:0: [sda] Attached SCSI disk
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[ 10.350728] md: bind<sda1>
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[ 10.353799] disk 0, wo:0, o:1, dev:sda1
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[ 16.314533] Adding 1952764k swap on /dev/sda2. Priority:-1 extents:1 across:1952764k
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</source>
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<source lang=bash>
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dmesg | grep sdb
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[ 1.080762] sd 5:0:0:0: [sdb] 3907029168 512-byte logical blocks: (2.00 TB/1.81 TiB)
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[ 1.080766] sd 5:0:0:0: [sdb] 4096-byte physical blocks
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[ 1.080823] sd 5:0:0:0: [sdb] Write Protect is off
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[ 1.080827] sd 5:0:0:0: [sdb] Mode Sense: 00 3a 00 00
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[ 1.080851] sd 5:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
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[ 1.105590] sdb: sdb1 sdb2
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[ 1.105925] sd 5:0:0:0: [sdb] Attached SCSI disk
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[ 10.350559] md: bind<sdb1>
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[ 10.353801] disk 1, wo:0, o:1, dev:sdb1
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[ 16.323616] Adding 1952764k swap on /dev/sdb2. Priority:-2 extents:1 across:1952764k
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</source>
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<source lang=bash>
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dmesg | grep sdc
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[ 9.292166] sd 6:0:0:0: [sdc] 52428800 512-byte logical blocks: (26.8 GB/25.0 GiB)
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[ 9.293177] sd 6:0:0:0: [sdc] Write Protect is off
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[ 9.293182] sd 6:0:0:0: [sdc] Mode Sense: 57 00 00 08
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[ 9.294860] sd 6:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
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[ 9.531531] sdc: sdc1
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[ 9.534631] sd 6:0:0:0: [sdc] Attached SCSI disk
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[ 10.875018] btrfs: device label system devid 1 transid 139 /dev/sdc1
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[ 13.448486] btrfs: device label system devid 1 transid 139 /dev/sdc1
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[ 13.511497] btrfs: device label system devid 1 transid 139 /dev/sdc1
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</source>
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<source lang=bash>
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parted -l
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Model: ATA WDC WD1001FALS-0 (scsi)
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Disk /dev/sda: 1000GB
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Sector size (logical/physical): 512B/512B
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Partition Table: msdos
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Number Start End Size Type File system Flags
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1 1049kB 2000MB 1999MB primary ext4 boot, raid
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2 2000MB 3999MB 2000MB primary linux-swap(v1)
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Model: ATA WDC WD20EARX-00P (scsi)
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Disk /dev/sdb: 2000GB
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Sector size (logical/physical): 512B/4096B
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Partition Table: msdos
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Number Start End Size Type File system Flags
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1 1049kB 2000MB 1999MB primary ntfs boot, raid
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2 2000MB 3999MB 2000MB primary linux-swap(v1)
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Model: FREEBSD CTLDISK (scsi)
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Disk /dev/sdc: 26,8GB
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Sector size (logical/physical): 512B/512B
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Partition Table: msdos
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Number Start End Size Type File system Flags
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1 1049kB 26,8GB 26,8GB primary btrfs
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Model: FREEBSD CTLDISK (scsi)
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Disk /dev/sdd: 26,8GB
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Sector size (logical/physical): 512B/512B
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Partition Table: msdos
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Number Start End Size Type File system Flags
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Model: FREEBSD CTLDISK (scsi)
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Disk /dev/sde: 26,8GB
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Sector size (logical/physical): 512B/512B
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Partition Table: msdos
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Number Start End Size Type File system Flags
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Model: FREEBSD CTLDISK (scsi)
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Disk /dev/sdf: 26,8GB
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Sector size (logical/physical): 512B/512B
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Partition Table: msdos
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Number Start End Size Type File system Flags
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Model: Linux Software RAID Array (md)
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Disk /dev/md0: 1998MB
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Sector size (logical/physical): 512B/4096B
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Partition Table: loop
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Number Start End Size File system Flags
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1 0,00B 1998MB 1998MB ext4
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</source>
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<source lang=bash>
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btrfs filesystem show /
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Label: 'system' uuid: a231f9ab-8a92-4ab5-b9b2-7365b637fdbe
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Total devices 1 FS bytes used 1.36GiB
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devid 1 size 25.00GiB used 4.04GiB path /dev/sdc1
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Btrfs v3.14.1
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</source>
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== Kernel mit iSCSI ==
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<source lang=bash>
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[ 8.779815] Loading iSCSI transport class v2.0-870.
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[ 8.781499] iscsi: registered transport (tcp)
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[ 9.037268] scsi6 : iSCSI Initiator over TCP/IP
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[ 9.290955] scsi 6:0:0:0: Direct-Access FREEBSD CTLDISK 0001 PQ: 0 ANSI: 5
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[ 9.291160] sd 6:0:0:0: Attached scsi generic sg3 type 0
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[ 9.291897] scsi 6:0:0:1: Direct-Access FREEBSD CTLDISK 0001 PQ: 0 ANSI: 5
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[ 9.292080] sd 6:0:0:1: Attached scsi generic sg4 type 0
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[ 9.292166] sd 6:0:0:0: [sdc] 52428800 512-byte logical blocks: (26.8 GB/25.0 GiB)
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[ 9.292618] scsi 6:0:0:2: Direct-Access FREEBSD CTLDISK 0001 PQ: 0 ANSI: 5
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[ 9.292737] sd 6:0:0:1: [sdd] 52428800 512-byte logical blocks: (26.8 GB/25.0 GiB)
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[ 9.292830] sd 6:0:0:2: Attached scsi generic sg5 type 0
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[ 9.293177] sd 6:0:0:0: [sdc] Write Protect is off
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[ 9.293182] sd 6:0:0:0: [sdc] Mode Sense: 57 00 00 08
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[ 9.293214] scsi 6:0:0:3: Direct-Access FREEBSD CTLDISK 0001 PQ: 0 ANSI: 5
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[ 9.293380] sd 6:0:0:3: Attached scsi generic sg6 type 0
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[ 9.294354] sd 6:0:0:2: [sde] 52428800 512-byte logical blocks: (26.8 GB/25.0 GiB)
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[ 9.294838] sd 6:0:0:3: [sdf] 52428800 512-byte logical blocks: (26.8 GB/25.0 GiB)
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[ 9.294860] sd 6:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
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[ 9.294982] sd 6:0:0:1: [sdd] Write Protect is off
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[ 9.294985] sd 6:0:0:1: [sdd] Mode Sense: 57 00 00 08
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[ 9.515170] sd 6:0:0:2: [sde] Write Protect is off
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[ 9.515178] sd 6:0:0:2: [sde] Mode Sense: 57 00 00 08
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[ 9.515345] sd 6:0:0:3: [sdf] Write Protect is off
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[ 9.515348] sd 6:0:0:3: [sdf] Mode Sense: 57 00 00 08
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[ 9.515364] sd 6:0:0:1: [sdd] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
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[ 9.515874] sd 6:0:0:2: [sde] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
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[ 9.515882] sd 6:0:0:3: [sdf] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
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[ 9.531531] sdc: sdc1
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[ 9.534631] sd 6:0:0:0: [sdc] Attached SCSI disk
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[ 9.541120] sde:
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[ 9.541149] sdd:
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[ 9.541255] sdf:
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[ 9.544132] sd 6:0:0:1: [sdd] Attached SCSI disk
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[ 9.544788] sd 6:0:0:3: [sdf] Attached SCSI disk
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[ 9.544926] sd 6:0:0:2: [sde] Attached SCSI disk
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</source>
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== BTRFS Platten hinzufügen ==
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Der Wahnsinn beginnt damit, einfach eine nackte Platte ohne Partitionstabelle hinzufügen zu können :D
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{{NiftyDiv|
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Farbe=#f4b9c4|
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Inhalt=
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<source lang=bash>
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btrfs device add /dev/sdd /
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/dev/sdd appears to contain a partition table (dos).
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Use the -f option to force overwrite.
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btrfs device add -f /dev/sdd /
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Performing full device TRIM (25.00GiB) ...
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btrfs filesystem show /
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Label: 'system' uuid: a231f9ab-8a92-4ab5-b9b2-7365b637fdbe
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Total devices 2 FS bytes used 1.37GiB
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devid 1 size 25.00GiB used 4.04GiB path /dev/sdc1
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devid 2 size 25.00GiB used 0.00 path /dev/sdd
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Btrfs v3.14.1
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</source>
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}}
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der übliche Weg ... 3 Festplatten, mit Partitionstabelle, hinzufügen und Raid5 erzeugen
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<source lang=bash>
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fdisk /dev/sdd
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fdisk /dev/sde
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fdisk /dev/sdf
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</source>
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<source lang=bash>
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sdc 8:32 0 25G 0 disk
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└─sdc1 8:33 0 25G 0 part
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sdd 8:48 0 25G 0 disk
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└─sdd1 8:49 0 25G 0 part
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sde 8:64 0 25G 0 disk
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└─sde1 8:65 0 25G 0 part
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sdf 8:80 0 25G 0 disk
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└─sdf1 8:81 0 25G 0 part
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</source>
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<source lang=bash>
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btrfs device add /dev/sdd1 /
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btrfs device add /dev/sde1 /
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btrfs device add /dev/sdf1 /
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</source>
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<source lang=bash>
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btrfs filesystem show /
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Label: 'system' uuid: a231f9ab-8a92-4ab5-b9b2-7365b637fdbe
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Total devices 4 FS bytes used 1.37GiB
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devid 1 size 25.00GiB used 4.04GiB path /dev/sdc1
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devid 2 size 25.00GiB used 0.00 path /dev/sdd1
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devid 3 size 25.00GiB used 0.00 path /dev/sde1
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devid 4 size 25.00GiB used 0.00 path /dev/sdf1
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Btrfs v3.14.1
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</source>
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== BTRFS RAID 5 erstellen ==
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<source lang=bash>
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btrfs balance start -dconvert=raid5 -mconvert=raid5 /
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Done, had to relocate 7 out of 7 chunks
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</source>
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<source lang=bash>
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btrfs balance status /
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No balance found on '/'
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btrfs filesystem show /
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Label: 'system' uuid: a231f9ab-8a92-4ab5-b9b2-7365b637fdbe
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Total devices 4 FS bytes used 1.37GiB
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devid 1 size 25.00GiB used 3.38GiB path /dev/sdc1
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devid 2 size 25.00GiB used 3.38GiB path /dev/sdd1
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devid 3 size 25.00GiB used 3.38GiB path /dev/sde1
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devid 4 size 25.00GiB used 3.38GiB path /dev/sdf1
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Btrfs v3.14.1
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</source>
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== BTRFS Mount Optionen ==
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<source lang=bash>
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vi /etc/fstab
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UUID=xxx / btrfs defaults,autodefrag,compress=zlib 0 1
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</source>
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== Log ==
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* 02.05.2014 - fährt nicht sauber runter
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* 02.05.2014 - einfaches Basis Setup
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