Thank you, Jan. Please see comments in line. jan damborsky wrote: > >> I am developing the test cases for libtd, and here I met with >> some questions about disk discovery cases. >> 1. about mtype attribute >> As I remember, in dwarf caiman project, libtd could find media >> type of each disks, but it only could discover "FIXED" one. Does >> it have any changes for OpenSolaris(i.e., could it find some devices >> which media type is not "FIXED"?). >> > > > There are no changes in libtd with respect to this behavior in OpenSolaris. > libtd itself doesn't filter out disks with 'mtype' other than 'FIXED' - > those > are excluded later in orchestrator: > > http://src.opensolaris.org/source/xref/caiman/slim_source/usr/src/lib/liborchestrator/target_discovery.c#432 > > >> Besides "FIXED", are there any >> other types "media type"? >> > > Yes, for full list of supported values which can be assigned to > 'mtype' see > > http://src.opensolaris.org/source/xref/caiman/slim_source/usr/src/lib/libtd/td_api.h#99 > From the struct in td_api above.
It looks like the devices not FIXED are "cdrom, floopy, ZIP, JAZ, DVD, MO". But from last comments in this mail, DVD/CDROM and floopy are filtered out by libtd. Then, can I say all the media type libtd catches is FIXED one? I know ZIP, JAZ and MO are very rare in practice now. We do not have such devices yet. Or better yet, could you tell me how I can verify the "media-type", from "prtconf","inquiry-device-type" attribute or any other commands? > >> Following example is I tried on >> OpenSolaris x86 box. >> # test_td -d -v >> Disk discovery >> Total number of disks: 3 >> ------------------------------------------------------------------------------- >> num | name| vendor| ctype| mtype| rem| lbl| bsize|#of blocks|size [MB]| >> ------------------------------------------------------------------------------- >> 1 | c1t0d0| Netac| usb| FIXED| Yes| F| 512| 3904768| 1906| >> 2 |* c4d0| unknown| ata| FIXED| No| VF| 512| 312576768| 152625| >> 3 | swap| unknown|unknown| UNKN| No| GF| 512| 1048576| 512| >> ------------------------------------------------------------------------------- >> >> >> 2. About removable attribute >> As it can be seen from above example that removable >> attribute is largely connected to the disk type(e.g., >> usb or CDROM). How can I get if a device is removable? >> Through "rmformat"? It seems that there are mismatch >> between the output of "libtd" and the output of "rmformat" >> command. >> >> > > libtd takes 'removable' attribute from libdiskmgt - looking at the > implementation, among other things libdiskmgt takes a look at > 'removable-media' property in device tree. If this property is set, > libdiskmgt reports media as removable - please see following source > code for implementation details and other cases when libdiskmgt > considers media to be removable (ZIP, JAZ, ...): > > http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/lib/libdiskmgt/common/findevs.c > > Based on this, you could check output of 'prtconf -v' for determining > if device is considered as removable by libdiskmgt (and libtd) - if > appropriate > disk has 'removable-media' property defined, libtd should report it as > removable. > Thank you. Then I have a question here. I plug a usb-disk, and rmformat shows it is removable, and the dev line is "/dev/removable-media/dsk/c5t0d0s0", but prtconf -v doesn't have "removable-media" attribute. Could I see it is not a removable device? You can see the example in following. > >> # test_td -d -v >> Disk discovery >> Total number of disks: 3 >> ------------------------------------------------------------------------------- >> num | name| vendor| ctype| mtype| rem| lbl| bsize|#of blocks|size [MB]| >> ------------------------------------------------------------------------------- >> 1 | c1t0d0| IC25N040| usb| FIXED| No| F| 512| 78140160| 38154| <-- not >> removable >> 2 |* c4d0| unknown| ata| FIXED| No| VF| 512| 312576768| 152625| >> 3 | swap| unknown|unknown| UNKN| No| GF| 512| 1048576| 512| >> ------------------------------------------------------------------------------- >> # rmformat >> Looking for devices... >> 1. Logical Node: /dev/rdsk/c1t0d0p0 >> Physical Node: /pci at 0,0/pci17aa,20ab at 1d,7/storage at 1/disk at 0,0 >> Connected Device: IC25N040 ATMR04-0 0811 >> Device Type: Removable <------ removable from rmformat. >> Bus: USB >> Size: 38.2 GB >> Label: <Unknown> >> Access permissions: Medium is not write protected. >> ...... >> >> >> >> >> If yes, what does it mean and how can I verify the >> attribute? >> >> 4. When I insert a CD into my DVD Drive, it seems >> like the test_td could not discover it as *CDROM*. >> Is it OK? >> > > Yes, that is correct, CD/DVD and floppy drives are filtered out and > excluded from list of valid targets by libtd: > > http://src.opensolaris.org/source/xref/caiman/slim_source/usr/src/lib/libtd/td_dd.c#1100 > Please see my first comment. Thanks Jason
