Spideroak deduplication how to#
Spideroak deduplication archive#
Spideroak deduplication pro#
Spideroak deduplication windows#

My SpiderOak backups were about a week old, I wasn’t backing up my /home ( where anything important is kept) on an interval but instead whenever I felt like it or before traveling – I made a mental note to stop doing it this way. Usually, with little exception if this fails you’re better off restoring from backups. Later versions of XFS (xfs_repair) will attempt to mount multiple superblocks (secondary, tertiary) that it knows about if the primary fails.

Spideroak deduplication pro#

There is nothing pro about my Samsung 850 SSD Pro, it died in less than 6months and I’ll try to get a replacement.

I had physical damage to the disk and eventually it stopped being identified by the OS. After accessing my Luks-encrypted LVM volumes I was unable in any way to mount the filesystems or repair them, I even tried using alternate superblocks and read through quite a bit of debug documentation to no avail. I then booted to a Fedora LiveCD to investigate further and hopefully run an xfs_repair. I was unable to read, copy or view data in any way. Looking at logs there were all manner of I/O and disk hardware errors. I first noticed there was an issue with my Fedora desktop when opening the Remmina application, it contained none of my settings, the theme was distorted and something was off.

Spideroak deduplication how to#

How to setup backups on a schedule via the SpiderOak CLI.

How to setup backups on a schedule with the SpiderOak Linux desktop version.

How to restore data from SpiderOak backups from a failed device.

Experiences in a data loss / restoration scenarios using SpiderOak.

I’m going to cover the following items here in hopes it is useful to others.

Spideroak deduplication windows#

It works natively on Linux, Windows and OSX and mobile clients. It also deduplicates all common data across all your devices which can be useful. SpiderOak is a blind (zero knowledge) encrypted cloud backup and file sharing service – only you have access to the encryption keys and it’s encrypted at rest and in transit so SpiderOak itself cannot access your data. Being the first time I’ve needed to restore data with SpiderOak here’s some things I’ve learned and impressions of the service on Linux. Luckily I had SpiderOak backups as my employer offers this as a service to associates. SpiderOak will compress the data blocks anyway, so the compression beforehand isn't necessary.Recently the SSD Operating System disk on my primary work desktop failed without warning and no manner of arcane xfsrepair or xfsdump/xfsrestore chicanery would bring it back. Of course, SpiderOak will be able to do the very best deduplication just by archiving the uncompressed file with each backup. In this case, the compressed output will remain more similar, even when the uncompressed input has small changes.

Spideroak deduplication archive#

Newer versions of gzip support an option called -rsyncable which increases the size of the compressed archive by about 1%, but also syncs the compressed output with the uncompressed input frequently. So even though the uncompressed source files might be 99% identical, the compressed files are 99% (or even 100%) different. The way zip, gzip, and most other compression algorithms work means that even very small changes in the uncompressed file will cause a 'cascade' of differences throughout the compressed file. This is a situation where SpiderOak provides an ideal backup solution, allowing you to store many historical states of the backup file using very little space within your SpiderOak account. In most cases, the data in the file will be very similar from one day to the next, with a small portion of the data changing. One of the most common server backup scenarios is something like a 'daily backup dump file.' For example, you may back up a SQL database to a compressed file each day. Please see the Help Center for the newest version. This article has moved to our new Help Center and will no longer be updated on this page.