I've updated the blog entry, no hacking around is necessary anymore. 'svcadm
disable volfs' is still recommended (vold/volfs will be completely removed
soon). USB is just an interface board slapped on the disk, there are disks with
both USB and SATA interfaces - you can connect with either cable and it won't
make a difference to ZFS because it tracks disks by devid, not device name.
So what you do with your disks is really up to you. If you just want a
single-disk zpool (though ZFS doesn't favor that), then probably 'zpool export'
before disconnecting and 'zpool import' after connecting will do it for you.
-Artem.
Noel Dellofano wrote:
We don't have a specific supported configuration method for usb devices
for ZFS. Most people are using them as mirrors or backups for their
laptop data. It's really up to you. There are a few threads from the
discuss archives where people have discussed some different possible
configs for usb storage or ways they've used it. One is here:
http://www.opensolaris.org/jive/thread.jspa?messageID=25144戸
where David Bustos also mentions Artem's blog as a go to. Perhaps we
also should add something to this effect in the FAQ....
Also, depending on how you intend to use the disk, a known issue is this:
6424510 usb ignores DKIOCFLUSHWRITECACHE
Noel
On Jul 18, 2006, at 11:53 PM, Stefan Parvu wrote:
Hey,
I have a portable harddisk Western Digital 120GB USB. Im running
Nevada b42a on Thinkpad T43. Is this a supported configuration for
setting up ZFS on portable disks ?
Found out some old blogs about this topic:
http://blogs.sun.com/roller/page/artem?entry=zfs_on_the_go and some
other info under: http://www.sun.com/io_technologies/USB-Faq.html
Is this information still valid ? Under ZFS FAQ there is no mention of
this topic, a good idea is to add a section about ZFS on mobile devices.
Thanks,
Stefan
# rmformat
Looking for devices...
1. Volmgt Node: /vol/dev/aliases/cdrom0
Logical Node: /dev/rdsk/c1t0d0s2
Physical Node: /[EMAIL PROTECTED],0/[EMAIL PROTECTED],2/[EMAIL
PROTECTED]/[EMAIL PROTECTED],0
Connected Device: MATSHITA UJDA765 DVD/CDRW 1.70
Device Type: DVD Reader
Bus: IDE
Size: <Unknown>
Label: <Unknown>
Access permissions: <Unknown>
2. Volmgt Node: /vol/dev/aliases/rmdisk0
Logical Node: /dev/rdsk/c2t0d0p0
Physical Node: /[EMAIL PROTECTED],0/pci1014,[EMAIL PROTECTED],7/[EMAIL
PROTECTED]/[EMAIL PROTECTED]/[EMAIL PROTECTED],0
Connected Device: WDC WD12 00VE-00KWT0 0000
Device Type: Removable
Bus: USB
Size: 114.5 GB
Label: <None>
Access permissions: Medium is not write protected.
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