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misc:homezfsnas
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misc:homezfsnas [2015/01/23 08:04] tschulz [Questions] |
misc:homezfsnas [2015/01/30 08:20] tschulz [Questions] |
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| ===== Questions ===== | ===== Questions ===== | ||
| - | - are iSCSI targets connected on bootup (Windows) | + | - are iSCSI targets connected on bootup (Windows): <file>**yes**</file> |
| - | - are iSCSI targets connected on bootup (Ubuntu) yes? | + | - are iSCSI targets connected on bootup (Ubuntu): **yes, is seems initiator is able to reconnect even after a target restart** |
| + | - Does iSCSI reattach quickly after suspend: **Linux no, Windows: yes** | ||
| - can you grow iSCSI targets as normal files | - can you grow iSCSI targets as normal files | ||
| - | - can you grow iSCSI targets as ZFS volumes | + | - can you grow iSCSI targets as ZFS volumes: **yes, (zfs set volsize=2g <POOL>/<DATASET>)** |
| - | - Is there a write gain for 4 drive raid 5 | + | - Is there a write gain for 4 drive raid 5: **yes** |
| - | - What is the performance hit for parity calculations | + | - What is the performance hit for parity calculations: **very small, active cpu usage is less than 2%, local throughput at 4 drives is 200MB/s, iSCSI access is at 125MB/s or 1000mb/s** |
| - | - what is the added latency of ethernet/tcp transmissions | + | - what is the added latency of ethernet/tcp transmissions: **0.1ms - 0.2ms** |
| + | |||
| + | |||
| + | ====== NFS Automounter Homes ====== | ||
| + | |||
| + | ===== On Server ===== | ||
| + | |||
| + | ==== /etc/rc.conf ==== | ||
| + | * NFS locking must be turned on otherwise NFS exports will not work as home directories | ||
| + | <file> | ||
| + | ... | ||
| + | rpcbind_enable="YES" | ||
| + | nfs_server_enable="YES" | ||
| + | mountd_flags="-r" | ||
| + | rpc_lockd_enable="YES" | ||
| + | rpc_statd_enable="YES" | ||
| + | ... | ||
| + | </file> | ||
| + | |||
| + | ==== Disable ZLI on nfs dataset ==== | ||
| + | <file> | ||
| + | zfs set sync=disabled <DATASET> | ||
| + | </file> | ||
| + | ==== Share Dataset ==== | ||
| + | <file> | ||
| + | zfs set sharenfs="-maproot=root,-alldirs" <DATASET> | ||
| + | </file> | ||
| + | |||
| + | ===== On Client ===== | ||
| + | ===== Install autofs ===== | ||
| + | <file> | ||
| + | apt-get install autofs | ||
| + | </file> | ||
| + | |||
| + | |||
| + | ==== /etc/default/autofs ==== | ||
| + | <file> | ||
| + | ... | ||
| + | BROWSE_MODE="yes" | ||
| + | LOGGING="debug" | ||
| + | MOUNT_NFS_DEFAULT_PROTOCOL=3 | ||
| + | ... | ||
| + | </file> | ||
| + | * Autofs sends logging to syslog, on 14.10 logging showed up in **/var/log/syslog** | ||
| + | |||
| + | ==== /etc/auto.master ==== | ||
| + | <file> | ||
| + | /netHomes /etc/auto.home --timeout=300 | ||
| + | </file> | ||
| + | |||
| + | ==== /etc/auto.homes ==== | ||
| + | * There must be a leading "/" between the NFS server and the export e.g. 192.168.0.1:/export | ||
| + | <file> | ||
| + | <SERVERNAME> -rw,soft,timeo=5,intr <IP/HOSTNAME>:/<DATASET> | ||
| + | </file> | ||
| + | |||
| + | * This will mount **<IP/HOSTNAME>:/<DATASET>** on **/netHomes/<SERVERNAME>** | ||
misc/homezfsnas.txt · Last modified: 2015/01/31 21:36 by tschulz
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