globalc

8 ms·

1.
by globalc 1y ago
That, and if not possible one can try to get the used kABI symbols graylisted at Red Hat, to get informed when they change.
2.
by globalc 2y ago
Let's take a task like "uncompressing a file". It's clear that a Raspi is uncompressing slower than a new and shiny Thinkpad.. but the Thinkpad also uses much more power. Who is more energy efficient? The article compare
3.
Take control of your Linux systems’ power consumption with pmda-denki(redhat.com)
1 points by globalc 3y ago|0 comments
4.
by globalc 4y ago
I played through more scenarios with the "I have a laptop, and want seamless switching between ethernet and wireless". shadowsocks proxy seems like the best choice, allowing transparent proxy for TCP applications, but also needs 2
5.
by globalc 4y ago
You should pay attention to make the ethernet the preferred interface. If aggregation of bandwidth over the various underlying media is important for you: depending on the exact mode, aggregation might not work. Even if working, via bondin
6.
by globalc 4y ago
Nice, was not sure how stable such a setup would be. The applications will not need further modification and just need to be sent over the bond. For MPTCP, as of today the applications over the mptcp-stream (which has subflows over the 2 me
7.
Mptcp: Moving laptop from GBit to wireless without applications noticing?(redhat.com)
64 points by globalc 4y ago|39 comments
8.
by globalc 5y ago
Ah, valid point, mea culpa. I have not used nbd, but I'm aware of it. Was very impressed to see even a NetBSD implementation. There is just so much around in that area. In my defense, the storage related PM and colleagues who reviewed
9.
Linux block devices: hints for debugging and new developments(redhat.com)
71 points by globalc 5y ago|4 comments
10.
by globalc 5y ago
+1 I use the older one which uses the kernel from the stock firmware. To my understanding done by the guys who worked also on the original firmware. I have seen just a single issue, it's minor: fast forward/rewind does not work pr
11.
by globalc 5y ago
I can recommend the FiiO M3K, especially loaded with https://www.rockbox.org/ . There is now a native Rockbox build (with some caveats), I use the older one from https://forums.rockbox.org/index.php/to
12.
by globalc 7y ago
Of course, besides simply supporting recovery from bit rot, one would also want to have confidence in the implementation. I think the vendors which provide production support for btrfs do so just for a few features.
13.
by globalc 7y ago
I know someone who did setup ceph just for it's healing capabilities.. but of course one has to familiarize with all of it's administration aspects for that. Setups with RAID1 could help fixing bit rot, but I think these setups ar
14.
by globalc 7y ago
- XFS: can use checksummed metadata, changed data (bit rot) will not be noticed, unless extra layers like dm-integrity are used - ext4: same as XFS - btrfs: can with checksums detect bit rot, not heal it by itself it seems - ceph: can detec
15.
What is bit rot, and how is your favourite file system dealing with it?(redhat.com)
2 points by globalc 7y ago|5 comments
16.
by globalc 8y ago
With the current code, your data becomes unmountable in that case. There is a workaround for getting the data accessable: leave a bit of the underlying blockdevice unused, so when creating VDO ontop give it not the full blockdevice. Then, i
17.
by globalc 8y ago
The capacity is not changing 'rapidly', instead the whole VDO device is thin provisioned. Let's assume a 1TB harddisk, then when creating a VDO device ontop, you can have that directly appear as 3TB, so 'thin provisioned
18.
by globalc 8y ago
Yes, VDO is transparent for the layers above, like filesystems. XFS+VDO might be preferable to BTRFS, if it has the features you need. - LVM could be used for snapshots, but the snapshots from BTRFS might be preferable in corner cases where
19.
by globalc 8y ago
Nothing prevents you from running VDO ontop of ZFS, apart of that not being in focus/tested at Red Hat. I do not expect issues from purely running both layers, but maybe things like proper mounting/umounting via fstab might not b
20.
by globalc 8y ago
If your data directories have much redundancy (so deduplication can help), or are nicely compressable, then VDO can also make sense for home setups. Like companies, you would consider things like "does it make sense for my kind of data