Important notes

On iokaste, /root/.zshenv now contains

PATH=/usr/afs/bin:$PATH

Status

Currently io runs an rxosd and a Heimdal KDC and the SL5 openafs client.

iokaste runs fileserver, vldbserver, osdserver and ptserver, all OSD-aware, as is the client.

Both run openafs-1.4.6, the servers being compiled with OSD patch.

Building OpenAFS-OSD

In the openafs-1.4.5-osd directory:

./configure --enable-bitmap-later --enable-bos-restricted-mode --enable-bos-new-config --enable-fast-restart --enable-supergroups --enable-largefile-fileserver --enable-transarc-paths --with-krb5-conf

Enabeling the client

From the source directory copy

src/libafs/MODLOAD-2.6.18-8.1.15.el5-MP/libafs.ko

(where 2.6.18-8.1.15.el5-MP is the kernel version)

/lib/modules/2.6.18-8.1.10.el5/kernel/fs/openafs/libafs.ko

```
depmod 
```
reboot
launch afsd

Issues

Missing token is not handled well

{{{ $ osd volumes io -lun 1 RX xdr error Cannot list volumes Request aborted.

$ osd createv io 1 536870924 Createvolume failed: RXOSD_create_part ended with 13 Request aborted.}}}

Subcommands

fs createstripedfile

{{{ # fs creates /afs/desytest/osdtest/mirrored-file 1 14 -copies 2 }}} where 1 is the number of stripes and 14 is log_2(stripesize in bytes).

Note: Allowed exponents are 12..19, allowing stripe sizes 4kB..512kB.

fs osd

{{{ # fs osd /afs/desytest/osdtest/mirrored-file /afs/desytest/osdtest/mirrored-file has 172 bytes of osd metadata, v=3 On-line, 1 segm, flags=0x0

segment:
- lng=0, offs=0, stripes=1, strsize=16384, cop=2, 2 objects object:
  - pid=536870924, oid=144117812300873732, osd=10, stripe=0 obj=536870924.4.33555043.0
  object:
  - pid=536870924, oid=144117812300873732, osd=11, stripe=0 obj=536870924.4.33555043.0 }}}

where osd=10 and osd=11 identify the storing OSD of each file copy. IDs are looked up using osd listo -ip.

osd wipecandidates

# osd wipe io
# osd wipe iokaste
            [ some waiting time ]
RXOSD_wipe_candidates failed with code -1
Request aborted.
# osd wipe /afs/desytest/osdtest/mirrored._usr_afs.2007-12-17.tar.bz2
(no error output)
# osd wipe io 0
# osd wipe io 1
# osd wipe io 2
0  Jan 24 16:03      4209654 536870924.4.33555043.0 536870924.4.33555043
# osd wipe io 3
0  Jan 28 15:31      4209654 536870924.4.33555043.0 536870924.4.33555043
# osd wipe io 4
RXOSD_wipe_candidates failed with code 5
Request aborted.

Note: The last request propably failed because there was no /vicepe/AFSIDat/ directory on io at the time.
Note: Using a filename as the only argument to osd wipe should have at least yielded an error similar to when using iokaste (which is not an OSD server).
Note: The entries for io/2 and io/3 are the two copies of the file created above.

fs wipe

# fs wipe mirrored._usr_afs.2007-12-17.tar.bz2
Could not wipe mirrored._usr_afs.2007-12-17.tar.bz2, error code was 22

Note: This appears to be the default answer to a tried wipe of a file that has not yet been archived using fs archive.

osd volumes

# osd volumes io
1 volumes found:
        536870924

That's the same VolID as in AFS:

# vos listvl
VLDB entries for all servers 

osdtestvol 
    RWrite: 536870924 
    number of sites -> 1
       server iokaste.ifh.de partition /vicepa RW Site 

root.cell 
    RWrite: 536870921 
    number of sites -> 1
       server iokaste.ifh.de partition /vicepa RW Site 

Total entries: 2

osd objects

Both volume and partition are needed:

# osd obj io 536870924
0 object(s) with totally 0 bytes for volume 536870924 found

# osd obj io 536870924 2
536870924.4.33555043.0 fid 536870924.4.611 tag 0 not-striped lng 4209654 lc 1
1 object(s) with totally 4209654 bytes for volume 536870924 found

Note: Without specifying a lun, the default of 0 (vicepa) is used.

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