some libraries cannot handle a request with volume tags and DVCID set at
the same time.
So we make 2 separate requests and merge them, since we want to keep
the vendor/model/serial data.
to not overcomplicate the code, add another special type to ElementType
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Some changers do not like the DVCID bit when querying non-drives,
this includes when querying 'all' elements.
To circumvent this, we query each type by itself (like mtx does it),
and only add the DVCID bit for drives (Data Transfer Elements).
Reported by a user in the forum:
https://forum.proxmox.com/threads/ibm-3584-ts3500-support.92291/
and limit to 1000 elements per request.
(Because some changers limit that request with the options we set)
instead of checking if the data len was equal to the allocation_len
for getting more data, we count the returned elements and compare
that with the number we requested
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
New kernel has stricter checks on tmpfs with stick-bit on directories, so some
commands (i.e. proxmox-tape changer status) fails when executed as root, because
permission checks fails when locking the drive.
This patch move the drive locks to /run/proxmox-backup/drive-lock.
Note: This is incompatible to old locking mechmanism, so users may not
run tape backups during update (or running backup can fail).
we try to load the correct media in a loop until we find the correct tape.
when encountering an error or wrong tape, we want to log that (and send
an email if one is set) that requests the correct tape.
while trying to avoid printing the same errors more than once in a row,
we had at least one case (starting with an empty tape in the drive)
which would not print/send any tape request.
reworking that code to use a custom 'TapeRequest' enum, which contains
the state + error message, and a helper that prints and sends an email
when the state changes
this reduces the change check/log to a single variable, instead of 4
(tried, last_media_uuid, last_error, failure_reason)
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
Add test code to the first locate_file command, compute locate_offset.
Subsequent locate_file commands use that offset.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Signed-off-by: Dietmar Maurer <dietmar@proxmox.com>
sort the chunks we want to backup to tape by inode, to gain some
speed on spinning disks. this is done per index, not globally.
costs a bit memory, but not too much, about 16 bytes per chunk which
would mean ~4MiB for a 1TiB index with 4MiB chunks.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
by implementing a custom error type that is either 'TimeOut' or
'Other'.
In the api, check in the worker loop for exactly 'TimeOut' errors and continue only
then. All other errors lead to a aborted task.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
from the SspDataEncryptionCapabilityPage
it seems we do not need it, since the EXTDECC flag is only used for
determining if the drive is capable to be configured via
ADI (Automation/Drive Interface) which we do not use at all.
this makes the call work with LTO-4 again
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
so that a user can force a new media set, e.g. if he uses the
allocation policy 'continue', but wants to manually start a new
media-set.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
if the reader thread is already gone here, we panic here, resulting in
a nondescript error message, so simply ignore/warn in that case and
return gracefully
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
Some changer seem to append more data than we expect, but correctly
annotates that size in the subheader.
For each descriptor entry, read as much as the size given in the
subheader (or until the end of the reader), else our position in
the reader is wrong for the next entry, and we will parse
incorrect data.
Signed-off-by: Dominik Csapak <d.csapak@proxmox.com>
