When cache is in standby mode config section of cache stats should contain only
relevant information.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Error message updated for the case of not meeting the space requirements
for the cache device.
Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
Fix for issue #1020 - make casadm produce a meaningful output when
listing a detached cache
Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
Added extra argument checks for --failover-standby switch in casadm.
Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
Don't print statistics for a cache in passive state
Passive cache - casadm set/get cache param disabled in passive state
Obsolete "cache_get_param" function removed
Error in layer_cache_management.c fixed
Flushing cache/core disabled with error for passive mode
Core addition disabled in passive mode
IO class setting disabled for passive mode
Counters reset disabled for passive mode
Ioctl handling changes to reflect OCF API changes
Signed-off-by: Krzysztof Majzerowicz-Jaszcz <krzysztof.majzerowicz-jaszcz@intel.com>
Don't remove inactive core if it has dirt cache lines assigned unless `force`
flag is specified.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Type of `dirty_for` in structs needs to be unified.
Values stored in these fields (both in cache and core info structs)
are unsigned 64-bits ints but `dirty_for`s were unsigned 32-bits ints
(vide changes in OCF).
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
Add `remove_inactive_core` function to casadm's code
to handle `remove inactive` command.
Print messages based on errors returned when command fails.
Add documentation comment to new function.
Add CLI part of introduced command.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
New error code will allow to properly handle issues caused by wrong
usage of `remove inactive core` command.
It will also allow to print meaningful error messages.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
Change extended error message for `KCAS_ERR_REMOVED_DIRTY`.
Print informative messages when `remove core` command fails.
Make separate error messages for detaching.
Update help printouts.
Update documentation comments.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
On some systems, e.g. Ubuntu, the order of linking `math` library is
important and when linking is done too early, openCAS making fails.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
If an underflowed float number was casted to an int explicitly, it's value was
rounded to a lower value.
Using `round()` function ensures that the number will be always rounded to a
nearest integer.
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Force option is used to enforce metadata erasure despite
dirty data, metadata mistmatch and/or dirty shutdown.
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
Kernel adapter now returns is_cache_device=1 and newly added
metadata_compatible=0 in case of metadata detected with
differing version (instead of is_cache_device = 0).
This allows zero-superblock command to recognize old
cache instance and clear it.
casadm --script --check-cache-device still returns 'Is cache'='no'
in this case, as this layer only cares about metadata in current
version to be able to detect dirty datas tatus.
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
This check covers the previous case (cache started) as well as
other potential incorrect usages of the command. Also now
the check is made exactly at the moment of opening the
device to write to.
Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
to `print_slow_atomic_cache_start_info` after removing check from lower
function `_check_cache_device`.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
Not every usage of `set_device_path()` needs to print message.
Sometimes it's internal operation and can contain misleading info.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
Check if path passed to core adding or cache starting is by-id link
otherwise do not allow to use it except it is exported object's path.
Do not resolve device's by-id path during core addition or cache starting.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
This fixes startup bug when core was added to core pool by md-name*
symlink, but cache metadata contained md-uuid* path, which led to
incomplete configuration
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
Since there is no kernel-kernel api available to communicate
with nvme driver it is more convenient to use some nvme-dedicated
software (e.g. nvme-cli) to manage nvme devices.
It is even not possible to format nvme device with CAS using current
implementation on newest kernels.
Signed-off-by: Michal Rakowski <michal.rakowski@intel.com>
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Make *run_ioctl_interruptible* a wrapper for new function *run_ioctl_interruptible_retry_option*.
Make new function *run_ioctl_interruptible_retry* - a wrapper for *run_ioctl_interruptible_retry_option*.
*run_ioctl_interruptible_retry_option* is old *run_ioctl_interruptible*
function with one more parameter to decide if call *run_ioctl* or *run_ioctl_retry*.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
Make *run_ioctl* a simple wrapper for *ioctl* function.
*run_ioctl_retry* is old *run_ioctl* function.
Signed-off-by: Slawomir Jankowski <slawomir.jankowski@intel.com>
