From EXT4 to BTRFS on Synology RS1219+ The Long Slow WAY - 817

Migrating the old drives over from the old DS411j went without a glitch. But now I still have the old EXT4 file system. and I really want to changes to BTRFS, that has check and error correction.

I did not do this the easy way,, but it did turn out to be a way with zero downtime.

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Even just 1$ a month, comes out to the same as Binge-watching like 400+ of me Videos every month.

My PlayHouse is a channel where i will show, what i am working on. I have this house, it is 168 Square Meters / 1808.3ft² and it is full, of half-finished projects.

I love working with heating, insulation, Servers, computers, Datacenter, green power, alternative energy, solar, wind and more. It all costs, but I'm trying to get the most out of my money, and my time.

[peterfixit]

20:00 i just started using iscsi, im using it to mount a "physical" vitrual disk in a windows virtual machine for unifi video to use, the iscsi lun gets stored on the main volume, theres no way to tell it where to store it and ive found it in the file system but it just errors out when I try to cd to it. far too advanced for me I will stick to cifs/smb for normal sharing

[fusedglass]

I just tired something Similar and I wasn't given a choice between ext4 and btrfs on a 8 bay DS1817. I also could not find something like mkfs.btrfs when I used ssh. Any tips?

[feieralarm]

15:33 Look at that lovely old Chieftec tower! :D

[bertnijhof]

Time you abandoned EXT4 or NTFS :) :) I have done that on all my PCs. I use BTRFS on my Pentium 4 with two 40 GB IDE disks. The disk are striped and LZO compressed. That ancient PC boots now in 45 seconds and there is not enough time anymore to fetch a coffee, like I did in the past. Every advantage has its own disadvantage (Johan Cruyff).
I use ZFS on my laptop and main desktop, mainly to stop the slow corruption of my music files, due to frequent power fails here in the Caribbean. Those new file system have many advantages like:
- protection against corruption
- automatic repair of corrupt files, if there is a redundant copy.
- support of different compression methods, like LZ4, GZIP1 to 9, etc.
- Combination of RAID methodologies, possible with different disks sizes and types, by using partitions.
- Striped disks (Raid-0), where the content of certain datasets (folders) are written twice to different disks.
- 3 level storage hierarchy with memory cache, SSD cache and the HDDs. The whole hierarchy uses the same compression.
- Instantaneous snapshots.
- In backups only the modified records will be send to the backup system or storage pool.

[Mr.E_Days]

For me with a ds412+ model, I try to change from raid1 to shr to get more space in one volume (you already are in shr).
I don't remember all what I did (backup, delete volume1, try increase volume2, fail+some errors!, reboot, no system!)
The synology operating system was stored in volume1, and I lost it, it was a headache to get it work again without loosing data, have you rebooted the synology to discover it?
Yesterday I remount some of those disk manually (where retired to new disk, after the system recovery and some DSM updates) and I see a lot of hidden/system folders that the synology file station doesn't show.

[philsbbs]

23:11 bottom right of the screen shows folders total.

[coolfrost]

yea i had the same challenges, when moved form my old 1010+ to my 918+, i initially just swapped over the old drives, but wanted btrfs so i could play around with the virtual machine function which is only supported in btrfs. Ended up using some external drives, it was a chore :S

[life-longpatriot]

Great video! I noticed at 09:40 when you built the MPH-backup file, you did not select "enable data checksum for advanced data integrity." This is an important feature of BTRFS when using the "data scrubbing" feature (unless that folder is used for storing video surveillance recordings or hosting databases or virtual machines. I'm not sure what you are using that folder for). Thanks for sharing!

[auntiecarol]

looking forward to the video next month when you move from BTRFS to ZFS /s

[Seegalgalguntijak]

How reliable is btrfs? I'm still running ext4 on all my PCs, laptop, home server subnotebook and all that stuff, because I'm kind of scared of using filesystems I don't know, since I did lose data once or twice in the past through such a migration. So, is btrfs already at a production stage? What are the filesystemtools that you have available with btrfs? Does it even make sense for a normal desktop or laptop to do the switch from ext4? The only filesystem switch I was rather comfortable with was the step from ext3 to ext4, but that was many years ago.

[mihumono]

I feel your pain. Recenly i was moving from mycloudmirror to unraid over gigabit connection. I'm glad it was only 2TB.

[TwoStepsNorth]

I'm about to both upgrade the disks I have to larger ones as well as change the file system. Luckily it is only 16TB, unfortunately it is spread over 8x3TB disks (Raid 6) meaning I have none of my 8 slots free in my NAS. I reallize one way of doing it would be to upgrade the disks "on the fly" and then make a temp partition but nah, that's too simple. :P I'm spreading the data out over all my different devices instead. Haha.

[beedslolkuntus]

Is there any format that can support over 500TB+

As far as I know ext4 can do 500TB

Can any do a whole PB?

[stephenoreilly]

Btrfs on Synology is Stable. I have 8 in production without a day’s trouble. 😀

[salat]

9:38 Didn't you want to enable 'data checksum'?

[zxztv]

Does your server system use compression on the files or do you save them already compressed?

[azlansharom]

So glad to have come across your video, as I'm about to attempt something similar! Question: I see you have 2 10TB and 2 4TB drives in your NAS. I thought all drives need to be the same size in an array or otherwise it would be limited in capacity to the smallest size drives. Clearly in your case the storage pool reflected the sum of all the 4 drives. Would you know if I had 3 4TB and 1 8TB drives installed would I get 3.6TB x 4 of capacity or 3.6TB x 3 + the "8TB" as storage pool capacity? Thanks!

[mdd]

I thought I read that RAID 5 and RAID6 was considered unreliable for see that Redhat has abandoned BTRFS for XFS)

[Runehorn]

I hope brtfs works out well for you, and I hope you do some videos on brtfs in the future, im interested in it's benefits, as my Synology box is ext4 because I didn't know much about what I was doing at the time.
Also
If you watch paint dry under an super powerful microscope, it is actually interesting to watch.

[LeeZhiWei]

Just asking.is synology nases using Linux because ext4 is mostly used for linux