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linux:scst [2014/08/17 11:46] admin |
linux:scst [2017/02/06 12:16] (current) tomsa |
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* device pouzivame fileio | * device pouzivame fileio | ||
* pouzivame vsude nv_cache | * pouzivame vsude nv_cache | ||
- | * disk musi byt vzdy uvedeny u vsech Targetu | + | * IMPORTANT: V pripade, ze se v infrastrukture pouziva multipath je VELICE dulezite udavat u disku t10_dev_id a jeho prvnich 8 znaku musi byt unikatni v celem systemu (vsechny storage) nebot z nej vychazi scsi_id, podle ktereho multipath paruje disky. scsi_id (wwid) se da ziskat nasledujicim prikazem: |
+ | <code bash>/lib/udev/scsi_id -u -g -v /dev/sdh</code> | ||
<code> | <code> | ||
Line 46: | Line 47: | ||
filename /dev/virtualgrp/lvtest | filename /dev/virtualgrp/lvtest | ||
nv_cache 1 | nv_cache 1 | ||
+ | t10_dev_id 1y65xpcl-testing1g | ||
} | } | ||
} | } | ||
Line 77: | Line 79: | ||
</code> | </code> | ||
+ | POZOR: pokud postupujete pri kompilaci scst podle [[http://scst.sourceforge.net/qla2x00t-howto.html|oficialniho navodu]] s dvouhlavou kartou, skript v bode 22 vam vygeneruje spatnou konfiguraci, pro kazdy target totiz vytvori samostatnou TARGET_DRIVER direktivu a v target modu bude posleze pouze hlava uvedena v konfiguraku jako posledni. Doporucuji tedy vychazet z vyse uvedene konfigurace (pozn. HW_TARGET zda se byl odstranen a take mi zpusoboval nefunkcnost konfiguraku) | ||
===== Mazani oddilu ===== | ===== Mazani oddilu ===== | ||
Tak smazat to jde. Postup je nasledujici: | Tak smazat to jde. Postup je nasledujici: | ||
Line 101: | Line 104: | ||
echo 1 >/sys/block/sddu/device/rescan | echo 1 >/sys/block/sddu/device/rescan | ||
+ | ====== Pridani svazku do Group ====== | ||
+ | Nize uvedeny priklad vytvori diskovy oddil v LVM. Prida ho do sekce "DEVICE" v scst. Vytvori groupu "sovgut" na druhem fc portu. Priradi novy diskovy oddil do teto groupy pod cislem 82. A nakonec povoli pristup pouze z wwn = '10:00:00:00:c9:6b:34:1e" (coz je pro otestovani nas Low). | ||
+ | <code> | ||
+ | lvcreate .... -n sovgut2 | ||
+ | scstadmin -open_dev sovgut2 -handler vdisk_fileio -attributes filename=/dev/virtualgrp/sovgut2,nv_cache=1 | ||
+ | scstadmin -add_group "sovgut" -driver qla2x00t -target "21:00:00:1b:32:10:2f:88" | ||
+ | scstadmin -add_lun 82 -driver qla2x00t -target '21:00:00:1b:32:10:2f:88' -group sovgut -device sovgut2 | ||
+ | scstadmin -add_init "10:00:00:00:c9:6b:34:1e" -driver qla2x00t -target '21:00:00:1b:32:10:2f:88' -group sovgut | ||
+ | </code> | ||
+ | |||
+ | a nezapomenout | ||
+ | scsiadmin -write_config /etc/scst.conf | ||
+ | | ||
+ | ====== Odkazy ====== | ||
+ | [[http://louwrentius.com/configuring-scst-iscsi-target-on-debian-linux-wheezy.html|Configuring SCST iSCSI Target]] |
linux/scst.1408268816.txt.gz · Last modified: 2014/08/17 11:46 by admin