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Posted by jpluimers on 2023/02/23
Long read worth your time: [Wayback/Archive] geerlingguy/my-backup-plan: How I back up all my data.
Video titled [Archive] Backups: You’re doing ’em wrong! – YouTube below the signature.
Via: [Archive] Chris Bensen on Twitter: “Just watched the latest @geerlingguy video on backups (…). Watch it! My personal backups have gone through some changes and it’s currently horrible so I’m going to implement the 1-2-3 backup plan in the new year. Thanks Jeff!” / Twitter
–jeroen
Posted in Backup, Power User | 1 Comment »
Posted by jpluimers on 2020/03/16
[WayBack1/WayBack2] Memo to self: Ich will ein Time Machine Backup unter Linux mounten, um das “Latest” Verzeichnis mit Restic an Backblaze senden zu können. Schritt 1: Sp… – Kristian Köhntopp – Google+:
Memo to self: Ich will ein Time Machine Backup unter Linux mounten, um das “Latest” Verzeichnis mit Restic an Backblaze senden zu können.
Schritt 1: Sparsebundle mounten
# ls -l /export/tm_kk/
total 8
drwx—— 3 kris users 4096 Oct 21 16:24 KK.sparsebundleGeht mit
# git clone git://github.com/torarnv/sparsebundlefs.git
# cd sparsebundlefs; make
# mkdir -p /bundles/tm_kk
# sparsebundlefs /export/tm_kk/KK.sparsebundle /bundles/tm_kk
# ls -lh /bundles/tm_kk
total 0
-r——– 1 root nogroup 1.5T Oct 21 16:24 sparsebundle.dmgSchritt 2: DMG loopmounten
# fdisk -l /bundles/tm_kk/sparsebundle.dmg
Disk /bundles/tm_kk/sparsebundle.dmg: 1.5 TiB, 1648462135296 bytes, 3219652608 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 15FCCBBD-49E4-42BB-B359-EF662F9916CFDevice Start End Sectors Size Type
/bundles/tm_kk/sparsebundle.dmg1 40 409639 409600 200M EFI System
/bundles/tm_kk/sparsebundle.dmg2 409640 3219390423 3218980784 1.5T Apple HFS/HFS+# kpartx -a -v /bundles/tm_kk/sparsebundle.dmg
add map loop8p1 (253:1): 0 409600 linear 7:8 40
add map loop8p2 (253:19): 0 3218980784 linear 7:8 409640# mkdir -p /hfs/tm_kk
# mount -o ro -t hfsplus /dev/mapper/loop8p2 /hfs/tm_kk
# b=$(readlink /hfs/tm_kk/Backups.backupdb/KK/Latest)
# ls -l /hfs/tm_kk/Backups.backupdb/KK/$b
total 0
drwxr-xr-x 1 root root 30 Oct 21 14:26 ‘Macintosh HD’Schritt 3: tmfs mount
Ein Time Machine Backup enthält doofe Hardlinks auf Verzeichnisse. Das kann Linux so nicht, und man muß das noch einmal mit tmfs fusemounten. Seufz.
# apt-get install tmfs
# mkdir -p /tmfs/tm_kk
# tmfs /hfs/tm_kk /tmfs/tm_kk
# ls -l /tmfs/tm_kk/KK/Latest/
total 0
drwxr-xr-x 1 root root 30 Oct 21 14:26 ‘Macintosh HD’Das durchzulesen ist nicht mal langsam.
Schritt 4: Abbauen
# umount /tmfs/tm_kk
# umount /hfs/tm_kk/
# kpartx -d -v /bundles/tm_kk/sparsebundle.dmg
del devmap : loop8p1
del devmap : loop8p2
loop deleted : /dev/loop8
# umount /bundles/tm_kkSchritt 5: Den Mist scripten
…
A few important comments from the WayBack2 link:
Jeroen Wiert Pluimers:
So your time machine data is on a Linux disk that you export from Linux to MacOS? (as otherwise, I don’t understand what /export/tm_kk/KK.sparsebundle is for)
Kristian Köhntopp:
Yes, I am running netatalk, SMB and NFS on an Ubuntu 18.04.
Jeroen Wiert Pluimers:
+Kristian Köhntopp Thanks. What do you envision as steps to restore a complete time machine?
Kristian Köhntopp:
We will see. I do not see that as normally necessary. Mostly I do not want to lose the work on my laptop, and am just to lazy to restrict the backup to that. In general, it should be possible to create this as a writeable setup so that I get the data back. I will probably never recreate a full runnable mac setup from this emergency offsite backup.
Tools used:
–jeroen
Posted in *nix, *nix-tools, Apple, Backup, Mac, Mac OS X / OS X / MacOS, MacBook, Power User | Leave a Comment »
Posted by jpluimers on 2019/02/11
We look at the hard drive failure rates for the data drive models in operation in our data centers in 2018 (now totaling over 750 petabytes and 100,000 drives). In addition, we’ll see how the new hard drive models we added during the year did, including our 12 TB HGST and 14 TB Toshiba drives.
Full article: [WayBack] 2018 Hard Drive Reliability Stats by Manufacturer and Model
Statistical data at [WayBack] Backblaze Hard Drive Stats: Hard Drive test data from the Backblaze data center. Backblaze is affordable, easy-to-use cloud storage.
Via [WayBack] 2018 Hard Drive Reliability Stats by Manufacturer and Model https://www.backblaze.com/blog/hard-drive-stats-for-2018/ – DoorToDoorGeek “Stephen McLaughlin” – Google+
–jeroen
Posted in Backup, Hardware, History, LifeHacker, Power User, Storage | Leave a Comment »
Posted by jpluimers on 2014/01/30
Wow, I didn’t expect these prices to be so low: Pricing.
I wonder what other providers there are.
–jeroen
Posted in Backup, Power User | Leave a Comment »
The Wiert Corner - irregular stream of stuff 