Hyper-V identifies passthrough VM disks by number instead of SCSI ID, although
the disk number can change across host reboots. This means that the VMs can end
up using incorrect disks after rebooting the host, which is an important
security concern. This issue also affects iSCSI and Fibre Channel disks.
We're going to document this Hyper-V limitation along with possible
workarounds.
Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>
On top of "profile rbd" permissions, "profile rbd-mirror-peer" also
allows getting rbd/mirror and setting rbd/mirror/peer/* config keys.
This is what "rbd mirror pool peer bootstrap create" does.
Fixes: https://tracker.ceph.com/issues/50970
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This PR rewrites the sections
- Configure Ceph-CSI
- Configure Nomad
in the rbd-nomad.rst Chapter of the RBD
Guide.
Signed-off-by: Zac Dover <zac.dover@gmail.com>
This PR improves the English in the "Create
a Pool" section of the "RBD & Nomad Integration"
chapter of the RBD Guide.
Signed-off-by: Zac Dover <zac.dover@gmail.com>
This PR improves the English syntax and
spelling in the "Block Devices and Nomad"
section of the rbd-nomad.rst page.
This PR rewrites the top-level matter.
Signed-off-by: Zac Dover <zac.dover@gmail.com>
less repeating this way.
also fix a typo of "rbd_qos_writ_bps_limit", it should be
"rbd_qos_write_bps_limit".
Signed-off-by: Kefu Chai <kchai@redhat.com>
Amend the example output and drop the word "transient" -- currently it
is the exact opposite, as the status is updated only when the cache is
opened and closed.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Document for rbd-persistent-read-only-cache show how to manage
ceph-immutable-object-cache daemon using systemd.
command example needs fixing.It should be
systemctl enable ceph-immutable-object-cache@ceph-immutable-object-cache.{unique id}
Fixes: https://tracker.ceph.com/issues/49849
Signed-off-by: Rachanaben Patel <racpatel@redhat.com>
Most of the Windows documentation is currently included in the
README.windows.rst file.
To make it more accessible, we're moving most of it to the
"doc/" folder, adding the following pages:
* Installing Ceph on Windows
* RBD on Windows
* Windows troubleshooting
We'll keep the build and manual install instructions in
README.windows.rst. Note that ceph-dokan already has a separate
doc page.
Signed-off-by: Lucian Petrut <lpetrut@cloudbasesolutions.com>
The initial implementation does not support backing files, compression,
snapshots, (deprecated) encryption, external data files, nor L2 subcluster
allocation. The former three features will be added in a future commit.
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
The initial implementation does not support backing files, compression, nor
(deprecated) encryption. The former two features will be added in a future commit.
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
Ceph config option names may use spaces, underscores, or by one reference hyphens
as interstitial separators. Most usage within the doc tree uses underscores,
though example conf files and especially structured lists of options mostly
use spaces. Mostly. Underscores help differentiate the config names from
surrounding text, and moreover facilitate scripting, grep, awk, etc and match
their form in src/common/options.cc.
This PR conforms these occurrences of option names to use interstitial underscores instead of spaces.
Fixes: https://tracker.ceph.com/issues/48301
Signed-off-by: Anthony D'Atri <anthony.datri@gmail.com>
The exclusive-lock could be transited transparently between clients
after finishing write operation. To disable "transparent" transition,
it needs to acquire the lock with RBD_LOCK_MODE_EXCLUSIVE.
Signed-off-by: Changcheng Liu <changcheng.liu@aliyun.com>
This commit adds the following commands to the "Configuring the iSCSI Target Using the Command Line" page: "systemctl enable rbd-target-gw" and "systemctl start rbd-target-gw"
Fixes: https://tracker.ceph.com/issues/45987
Signed-off-by: Zac Dover <zac.dover@gmail.com>
Modify the design of token bucket to save more tokens than burst value,
so as to support continuous burst. The desired burst duration can be
controlled by rbd_qos_XYZ_burst_seconds.
Fixes: https://tracker.ceph.com/issues/45313
Signed-off-by: wencong wan <wanwc@chinatelecom.cn>
It needs to create admin socket to use perf counter for
debug purpose. Remind the access right to directory.
Signed-off-by: Changcheng Liu <changcheng.liu@aliyun.com>
RTD does not support installing system packages, the only ways to install
dependencies are setuptools and pip. while ditaa is a tool written in
Java. so we need to find a native python tool allowing us to render ditaa
images. plantweb is able to the web service for rendering the ditaa
diagram. so let's use it as a fallback if "ditaa" is not around.
also start a new line after the directive, otherwise planweb server will
return 500 at seeing the diagram.
Signed-off-by: Kefu Chai <kchai@redhat.com>
When a snapshot-based image is non-primary, we will need to use
this implicit feature to ensure that writes and maintenance
operations cannot be performed against the image.
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
If libvird is under Selinux/Apparmor enforced mode, libvirtd
may not be enable to do some operatoins on the rbd image. It
need remind this in document.
Signed-off-by: Changcheng Liu <changcheng.liu@aliyun.com>
A discussion on the ceph-users list uncovered a bit of uncertainty
about how exclusive locking works:
https://www.mail-archive.com/ceph-users@lists.ceph.com/msg56910.html
Add a bit of background information about exclusive locks, and
cross-reference the documentatation on OpenStack, and on CephX.
Signed-off-by: Florian Haas <florian@citynetwork.eu>
this change silences the warning of
```
doc/rbd/qemu-rbd.rst:174: WARNING: Pygments lexer name 'guess' is not
known
```
see http://pygments.org/docs/lexers/, we should use "xml" for XML .
Signed-off-by: Kefu Chai <kchai@redhat.com>
* refs/pull/30475/head:
qa/standalone/ceph-helpers: default pg autoscale mode off for standalone
os/bluestore: fix objectstore_blackhole read-after-write
test,misc: do not specify pg_num per pool
mgr/volumes: do not specify pg_num
pybind/ceph_volume_client: do not specify pg_num for new pools
doc: remove all pg_num arguments to 'osd pool create'
mon: do not require pg_num to 'osd pool create'
common: default pg_autoscale_mode=on for new pools
Reviewed-by: xie xingguo <xie.xingguo@zte.com.cn>
Clean up the caching sections to match the current implementation and
clarify which sections apply only to librbd.
Signed-off-by: Jason Dillaman <dillaman@redhat.com>
Removed references to older OpenStack releases. Updated
documentation in regards to using QCOW2 as a virtual machine
disk type.
Fixes: https://tracker.ceph.com/issues/18197
Signed-off-by: James McClune <jmcclune@mcclunetechnologies.net>
The lio setup and teardown functionality was moved from rbd-target-gw to
rbd-target-api in ceph-iscsi.
Signed-off-by: Mike Christie <mchristi@redhat.com>
