P\u00e5 arbeidsstasjonen min har jeg en liten 120GB SSD disk, som blir litt for liten n\u00e5r den er delt mellom fedora og windows. Dette igjen betyr at jeg ikke har plass til \u00e5 bruke windowsen til det den var tiltenkt(spill). S\u00e5 l\u00f8sningen ble for min del \u00e5 lage en “sparse” fil som jeg igjen delte ut via iSCSI fra CentOS serveren min, og monterte denne igjen i windows. Dermed har jeg n\u00e5 400GB tilgjengelig uten at jeg bruker mer enn hva filene som ligger i “sparse” filen faktisk opptar.<\/p>\n
S\u00e5 over til sm\u00e5detaljene. P\u00e5 arbeidsstasjonen min har jeg en liten 120GB SSD disk, som blir litt for liten n\u00e5r den er delt mellom fedora og windows. Dette igjen betyr at jeg ikke har plass til \u00e5 bruke windowsen til det den var tiltenkt(spill). S\u00e5 l\u00f8sningen ble for min del \u00e5 lage en “sparse” fil som jeg igjen delte […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[9,10,11],"tags":[65,101,6,7,33,102,22],"class_list":["post-356","post","type-post","status-publish","format-standard","hentry","category-data","category-linux-data","category-nettverk-data","tag-centos","tag-iscsi","tag-linux","tag-nettverk","tag-server","tag-tgtd","tag-windows"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blog.kpolberg.net\/index.php?rest_route=\/wp\/v2\/posts\/356","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.kpolberg.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.kpolberg.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.kpolberg.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.kpolberg.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=356"}],"version-history":[{"count":3,"href":"https:\/\/blog.kpolberg.net\/index.php?rest_route=\/wp\/v2\/posts\/356\/revisions"}],"predecessor-version":[{"id":359,"href":"https:\/\/blog.kpolberg.net\/index.php?rest_route=\/wp\/v2\/posts\/356\/revisions\/359"}],"wp:attachment":[{"href":"https:\/\/blog.kpolberg.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=356"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.kpolberg.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=356"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.kpolberg.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=356"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n
\nroot@server:\/root $ yum install scsi-target-utils
\nroot@server:\/root $ cd \/etc\/tgt\/
\nroot@server:tgt $ vi targets.conf
\n<target iqn.2014-05.fluxxx.lan:workstation.target1>
\nbacking-store \/export\/iscsi\/workstation.img
\n<\/target>
\nroot@server:iscsi $ dd if=\/dev\/zero of=workstation.img bs=1 count=0 seek=400G
\nroot@server:iscsi $ \/etc\/init.d\/tgtd start
\nroot@server:iscsi $ chkconfig tgtd on
\n<\/code>
\nDa er i teorien iSCSI delt ut, s\u00e5 kan vi f\u00e5 det verifisert med kommandoen.
\n
\nroot@server:tgt $ tgtadm --lld iscsi --op show --mode target
\nTarget 1: iqn.2014-05.fluxxx.lan:workstation.target1
\nSystem information:
\nDriver: iscsi
\nState: ready
\nI_T nexus information:
\nLUN information:
\nLUN: 0
\nType: controller
\nSCSI ID: IET 00010000
\nSCSI SN: beaf10
\nSize: 0 MB, Block size: 1
\nOnline: Yes
\nRemovable media: No
\nReadonly: No
\nBacking store type: null
\nBacking store path: None
\nBacking store flags:
\nLUN: 1
\nType: disk
\nSCSI ID: IET 00010001
\nSCSI SN: beaf11
\nSize: 429497 MB, Block size: 512
\nOnline: Yes
\nRemovable media: No
\nReadonly: No
\nBacking store type: rdwr
\nBacking store path: \/export\/iscsi\/workstation.img
\nBacking store flags:
\nAccount information:
\nACL information:
\nALL
\n<\/code>
\nHvor mye plass er faktisk i bruk av selve “sparse” filen.
\n
\nroot@server:iscsi $ du -sh workstation.img
\n30G workstation.img
\nroot@server:iscsi $ du -sh --apparent-size workstation.img
\n400G workstation.img
\n<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"