[[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 == vi /etc/ctl.conf target iqn.2014-01.de.c3d2.hq:zaubert { auth-group no-authentication portal-group c3d2 alias "ZauBert BTRFS" lun 0 { path /iscsi/target2-0 size 25G } lun 1 { path /iscsi/target2-1 size 25G } lun 2 { path /iscsi/target2-2 size 25G } lun 3 { path /iscsi/target2-3 size 25G } } == 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 === 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 parted -l Model: ATA WDC WD1001FALS-0 (scsi) Disk /dev/sda: 1000GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 2000MB 1999MB primary ext4 boot, raid 2 2000MB 3999MB 2000MB primary linux-swap(v1) Model: ATA WDC WD20EARX-00P (scsi) Disk /dev/sdb: 2000GB Sector size (logical/physical): 512B/4096B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 2000MB 1999MB primary ntfs boot, raid 2 2000MB 3999MB 2000MB primary linux-swap(v1) Model: FREEBSD CTLDISK (scsi) Disk /dev/sdc: 26,8GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 26,8GB 26,8GB primary btrfs Model: FREEBSD CTLDISK (scsi) Disk /dev/sdd: 26,8GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags Model: FREEBSD CTLDISK (scsi) Disk /dev/sde: 26,8GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags Model: FREEBSD CTLDISK (scsi) Disk /dev/sdf: 26,8GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags Model: Linux Software RAID Array (md) Disk /dev/md0: 1998MB Sector size (logical/physical): 512B/4096B Partition Table: loop Number Start End Size File system Flags 1 0,00B 1998MB 1998MB ext4 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 Platten hinzufügen == Der Wahnsinn beginnt damit, einfach eine nackte Platte ohne Partitionstabelle hinzufügen zu können :D {{NiftyDiv| Farbe=#f4b9c4| Inhalt= btrfs device add /dev/sdd / /dev/sdd appears to contain a partition table (dos). Use the -f option to force overwrite. btrfs device add -f /dev/sdd / Performing full device TRIM (25.00GiB) ... btrfs filesystem show / Label: 'system' uuid: a231f9ab-8a92-4ab5-b9b2-7365b637fdbe Total devices 2 FS bytes used 1.37GiB devid 1 size 25.00GiB used 4.04GiB path /dev/sdc1 devid 2 size 25.00GiB used 0.00 path /dev/sdd Btrfs v3.14.1 }} der übliche Weg ... 3 Festplatten, mit Partitionstabelle, hinzufügen und Raid5 erzeugen fdisk /dev/sdd fdisk /dev/sde fdisk /dev/sdf sdc 8:32 0 25G 0 disk └─sdc1 8:33 0 25G 0 part sdd 8:48 0 25G 0 disk └─sdd1 8:49 0 25G 0 part sde 8:64 0 25G 0 disk └─sde1 8:65 0 25G 0 part sdf 8:80 0 25G 0 disk └─sdf1 8:81 0 25G 0 part btrfs device add /dev/sdd1 / btrfs device add /dev/sde1 / btrfs device add /dev/sdf1 / btrfs filesystem show / Label: 'system' uuid: a231f9ab-8a92-4ab5-b9b2-7365b637fdbe Total devices 4 FS bytes used 1.37GiB devid 1 size 25.00GiB used 4.04GiB path /dev/sdc1 devid 2 size 25.00GiB used 0.00 path /dev/sdd1 devid 3 size 25.00GiB used 0.00 path /dev/sde1 devid 4 size 25.00GiB used 0.00 path /dev/sdf1 Btrfs v3.14.1 == BTRFS RAID 5 erstellen == btrfs balance start -dconvert=raid5 -mconvert=raid5 / Done, had to relocate 7 out of 7 chunks btrfs balance status / No balance found on '/' btrfs filesystem show / Label: 'system' uuid: a231f9ab-8a92-4ab5-b9b2-7365b637fdbe Total devices 4 FS bytes used 1.37GiB devid 1 size 25.00GiB used 3.38GiB path /dev/sdc1 devid 2 size 25.00GiB used 3.38GiB path /dev/sdd1 devid 3 size 25.00GiB used 3.38GiB path /dev/sde1 devid 4 size 25.00GiB used 3.38GiB path /dev/sdf1 Btrfs v3.14.1 == BTRFS Mount Optionen == vi /etc/fstab UUID=xxx / btrfs defaults,autodefrag,compress=zlib 0 1 == Log == * 02.05.2014 - fährt nicht sauber runter * 02.05.2014 - einfaches Basis Setup