backup vs sync

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mjstraw
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backup vs sync

Post by mjstraw » Sat Aug 17, 2019 4:02 am

What is the difference between backup and sync when using HBS3?
Previously, with Backup Station, the only choice was sync.

I just want to do a full backup that I can take off-site. Sync implies that the file movement could be two-way? Like with QSync.

With backup do the files get compressed into a single file/container?
Mark
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TS-453 Pro, 4.3.6
2x WD RED 3TB (Raid 1), 2x empty

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spikemixture
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Re: backup vs sync

Post by spikemixture » Sat Aug 17, 2019 6:13 pm

When you sync in HBS3 there is a oneway sync option .

Back up in HBS3 will compress data and added to A will be added to B but removed from A will not be deleted from B

Set up one way sync and all of A will be copied to B.
Next time new on A will be added to B
Deleted from A will be deleted from B
Qnap TS-1277 1700 6x8TB WD White, 2x8TB WD Red - Raid5,, 2x M.2 Crucial 1TB (Raid 1 VM),
2x SSD 860 EVO 500gb (Raid1 QTS), 2x SSD 860 EVO 250GB (Cache), 2x M.2 PCIe 970 500gb NVME (Raid1 Plex and Emby server)
Qnap TVS-1282 i7 - 8x10TB WD White - Raid 6, 2x M.2 Crucial 500gb Raid1 VM),
2x SSD EVO 500gb (Raid1 QTS), 2x SSD EVO 250gb (Raid1 Cache), 2x M.2 PCIe Intel 512GB NVME (Raid1-Servers)
Synology -1817+ - 2x10,2x8,2x6 (Ironwolf) 2x6 WD Red - SHR
Drobo 5n - 3x2TB WD Green, 2x3TB WD Red - Drobo Raid
Buffalo LinkStation - 2x2TB WD
ProBox 8 Bay USB3 - 8x4TB Seagate - JBOD
All software is updated as soon as it's available.
I give my opinion from my experience i.e. I have (or had) that piece of equipment/software and used it! :roll:

mjstraw
Getting the hang of things
Posts: 62
Joined: Wed Mar 09, 2016 7:51 am

Re: backup vs sync

Post by mjstraw » Sat Aug 17, 2019 8:28 pm

What about modified on A? will both backup and one-way sync copy to B?

When would you want to use two-way sync?
Mark
----------
TS-453 Pro, 4.3.6
2x WD RED 3TB (Raid 1), 2x empty

User avatar
spikemixture
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Posts: 719
Joined: Wed Mar 07, 2018 11:04 pm
Location: 3rd World

Re: backup vs sync

Post by spikemixture » Sat Aug 17, 2019 8:31 pm

mjstraw wrote:
Sat Aug 17, 2019 8:28 pm
What about modified on A? will both backup and one-way sync copy to B?

When would you want to use two-way sync?
yes

2 way sync would be if you are changing files on both A and B
Qnap TS-1277 1700 6x8TB WD White, 2x8TB WD Red - Raid5,, 2x M.2 Crucial 1TB (Raid 1 VM),
2x SSD 860 EVO 500gb (Raid1 QTS), 2x SSD 860 EVO 250GB (Cache), 2x M.2 PCIe 970 500gb NVME (Raid1 Plex and Emby server)
Qnap TVS-1282 i7 - 8x10TB WD White - Raid 6, 2x M.2 Crucial 500gb Raid1 VM),
2x SSD EVO 500gb (Raid1 QTS), 2x SSD EVO 250gb (Raid1 Cache), 2x M.2 PCIe Intel 512GB NVME (Raid1-Servers)
Synology -1817+ - 2x10,2x8,2x6 (Ironwolf) 2x6 WD Red - SHR
Drobo 5n - 3x2TB WD Green, 2x3TB WD Red - Drobo Raid
Buffalo LinkStation - 2x2TB WD
ProBox 8 Bay USB3 - 8x4TB Seagate - JBOD
All software is updated as soon as it's available.
I give my opinion from my experience i.e. I have (or had) that piece of equipment/software and used it! :roll:

mjstraw
Getting the hang of things
Posts: 62
Joined: Wed Mar 09, 2016 7:51 am

Re: backup vs sync

Post by mjstraw » Sat Aug 17, 2019 10:11 pm

After 40 years in IT I'm still of the mindset that a backup is never "used" except to restore files.
Mark
----------
TS-453 Pro, 4.3.6
2x WD RED 3TB (Raid 1), 2x empty

User avatar
spikemixture
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Posts: 719
Joined: Wed Mar 07, 2018 11:04 pm
Location: 3rd World

Re: backup vs sync

Post by spikemixture » Sat Aug 17, 2019 11:50 pm

mjstraw wrote:
Sat Aug 17, 2019 10:11 pm
After 40 years in IT I'm still of the mindset that a backup is never "used" except to restore files.
er yep.
Qnap TS-1277 1700 6x8TB WD White, 2x8TB WD Red - Raid5,, 2x M.2 Crucial 1TB (Raid 1 VM),
2x SSD 860 EVO 500gb (Raid1 QTS), 2x SSD 860 EVO 250GB (Cache), 2x M.2 PCIe 970 500gb NVME (Raid1 Plex and Emby server)
Qnap TVS-1282 i7 - 8x10TB WD White - Raid 6, 2x M.2 Crucial 500gb Raid1 VM),
2x SSD EVO 500gb (Raid1 QTS), 2x SSD EVO 250gb (Raid1 Cache), 2x M.2 PCIe Intel 512GB NVME (Raid1-Servers)
Synology -1817+ - 2x10,2x8,2x6 (Ironwolf) 2x6 WD Red - SHR
Drobo 5n - 3x2TB WD Green, 2x3TB WD Red - Drobo Raid
Buffalo LinkStation - 2x2TB WD
ProBox 8 Bay USB3 - 8x4TB Seagate - JBOD
All software is updated as soon as it's available.
I give my opinion from my experience i.e. I have (or had) that piece of equipment/software and used it! :roll:

mjstraw
Getting the hang of things
Posts: 62
Joined: Wed Mar 09, 2016 7:51 am

Re: backup vs sync

Post by mjstraw » Sun Aug 18, 2019 11:52 pm

so hence a "2-way" sync makes no sense for backup purposes
Mark
----------
TS-453 Pro, 4.3.6
2x WD RED 3TB (Raid 1), 2x empty

User avatar
spikemixture
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Posts: 719
Joined: Wed Mar 07, 2018 11:04 pm
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Re: backup vs sync

Post by spikemixture » Mon Aug 19, 2019 9:41 am

mjstraw wrote:
Sun Aug 18, 2019 11:52 pm
so hence a "2-way" sync makes no sense for backup purposes
Correct its not a "back up" it's a "sync"
Qnap TS-1277 1700 6x8TB WD White, 2x8TB WD Red - Raid5,, 2x M.2 Crucial 1TB (Raid 1 VM),
2x SSD 860 EVO 500gb (Raid1 QTS), 2x SSD 860 EVO 250GB (Cache), 2x M.2 PCIe 970 500gb NVME (Raid1 Plex and Emby server)
Qnap TVS-1282 i7 - 8x10TB WD White - Raid 6, 2x M.2 Crucial 500gb Raid1 VM),
2x SSD EVO 500gb (Raid1 QTS), 2x SSD EVO 250gb (Raid1 Cache), 2x M.2 PCIe Intel 512GB NVME (Raid1-Servers)
Synology -1817+ - 2x10,2x8,2x6 (Ironwolf) 2x6 WD Red - SHR
Drobo 5n - 3x2TB WD Green, 2x3TB WD Red - Drobo Raid
Buffalo LinkStation - 2x2TB WD
ProBox 8 Bay USB3 - 8x4TB Seagate - JBOD
All software is updated as soon as it's available.
I give my opinion from my experience i.e. I have (or had) that piece of equipment/software and used it! :roll:

mjstraw
Getting the hang of things
Posts: 62
Joined: Wed Mar 09, 2016 7:51 am

Re: backup vs sync

Post by mjstraw » Mon Aug 19, 2019 10:42 am

But with "Backup Station" you had a single entity - sync. Which implied that sync was to be used for backup. Which never made sense.
Mark
----------
TS-453 Pro, 4.3.6
2x WD RED 3TB (Raid 1), 2x empty

User avatar
spikemixture
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Posts: 719
Joined: Wed Mar 07, 2018 11:04 pm
Location: 3rd World

Re: backup vs sync

Post by spikemixture » Mon Aug 19, 2019 11:11 am

mjstraw wrote:
Mon Aug 19, 2019 10:42 am
But with "Backup Station" you had a single entity - sync. Which implied that sync was to be used for backup. Which never made sense.
I do not know Backup Station but I guess it how you interpret the term/word sync! (short for synchronization)

Sync to me has always meant anything new on A is copied to B . Anything removed from A gets removed from B

i.e. after every run/sync , B is identical to A .
Qnap TS-1277 1700 6x8TB WD White, 2x8TB WD Red - Raid5,, 2x M.2 Crucial 1TB (Raid 1 VM),
2x SSD 860 EVO 500gb (Raid1 QTS), 2x SSD 860 EVO 250GB (Cache), 2x M.2 PCIe 970 500gb NVME (Raid1 Plex and Emby server)
Qnap TVS-1282 i7 - 8x10TB WD White - Raid 6, 2x M.2 Crucial 500gb Raid1 VM),
2x SSD EVO 500gb (Raid1 QTS), 2x SSD EVO 250gb (Raid1 Cache), 2x M.2 PCIe Intel 512GB NVME (Raid1-Servers)
Synology -1817+ - 2x10,2x8,2x6 (Ironwolf) 2x6 WD Red - SHR
Drobo 5n - 3x2TB WD Green, 2x3TB WD Red - Drobo Raid
Buffalo LinkStation - 2x2TB WD
ProBox 8 Bay USB3 - 8x4TB Seagate - JBOD
All software is updated as soon as it's available.
I give my opinion from my experience i.e. I have (or had) that piece of equipment/software and used it! :roll:

mjstraw
Getting the hang of things
Posts: 62
Joined: Wed Mar 09, 2016 7:51 am

Re: backup vs sync

Post by mjstraw » Mon Aug 19, 2019 11:09 pm

One advantage I can see of sync over backup for backups is restoration granularity. With backup you can only restore folders, with sync you can restore individual files.
Mark
----------
TS-453 Pro, 4.3.6
2x WD RED 3TB (Raid 1), 2x empty

User avatar
spikemixture
Been there, done that
Posts: 719
Joined: Wed Mar 07, 2018 11:04 pm
Location: 3rd World

Re: backup vs sync

Post by spikemixture » Tue Aug 20, 2019 9:56 am

mjstraw wrote:
Mon Aug 19, 2019 11:09 pm
One advantage I can see of sync over backup for backups is restoration granularity. With backup you can only restore folders, with sync you can restore individual files.
I personally want my backup (sync) to be a duplicate of the original so it can be used as an original if required...
Qnap TS-1277 1700 6x8TB WD White, 2x8TB WD Red - Raid5,, 2x M.2 Crucial 1TB (Raid 1 VM),
2x SSD 860 EVO 500gb (Raid1 QTS), 2x SSD 860 EVO 250GB (Cache), 2x M.2 PCIe 970 500gb NVME (Raid1 Plex and Emby server)
Qnap TVS-1282 i7 - 8x10TB WD White - Raid 6, 2x M.2 Crucial 500gb Raid1 VM),
2x SSD EVO 500gb (Raid1 QTS), 2x SSD EVO 250gb (Raid1 Cache), 2x M.2 PCIe Intel 512GB NVME (Raid1-Servers)
Synology -1817+ - 2x10,2x8,2x6 (Ironwolf) 2x6 WD Red - SHR
Drobo 5n - 3x2TB WD Green, 2x3TB WD Red - Drobo Raid
Buffalo LinkStation - 2x2TB WD
ProBox 8 Bay USB3 - 8x4TB Seagate - JBOD
All software is updated as soon as it's available.
I give my opinion from my experience i.e. I have (or had) that piece of equipment/software and used it! :roll:

mjstraw
Getting the hang of things
Posts: 62
Joined: Wed Mar 09, 2016 7:51 am

Re: backup vs sync

Post by mjstraw » Wed Aug 21, 2019 4:49 am

spikemixture wrote:
Sat Aug 17, 2019 6:13 pm
When you sync in HBS3 there is a oneway sync option .

Back up in HBS3 will compress data and added to A will be added to B but removed from A will not be deleted from B

Set up one way sync and all of A will be copied to B.
Next time new on A will be added to B
Deleted from A will be deleted from B
Looks like there are "advanced options" for backup that will make it behave like sync with respect to deleted files
Mark
----------
TS-453 Pro, 4.3.6
2x WD RED 3TB (Raid 1), 2x empty

User avatar
spikemixture
Been there, done that
Posts: 719
Joined: Wed Mar 07, 2018 11:04 pm
Location: 3rd World

Re: backup vs sync

Post by spikemixture » Wed Aug 21, 2019 10:45 am

mjstraw wrote:
Wed Aug 21, 2019 4:49 am
spikemixture wrote:
Sat Aug 17, 2019 6:13 pm
When you sync in HBS3 there is a oneway sync option .

Back up in HBS3 will compress data and added to A will be added to B but removed from A will not be deleted from B

Set up one way sync and all of A will be copied to B.
Next time new on A will be added to B
Deleted from A will be deleted from B
Looks like there are "advanced options" for backup that will make it behave like sync with respect to deleted files
Yes

Under Rules tick "Remove additional files in Destination folder"
Qnap TS-1277 1700 6x8TB WD White, 2x8TB WD Red - Raid5,, 2x M.2 Crucial 1TB (Raid 1 VM),
2x SSD 860 EVO 500gb (Raid1 QTS), 2x SSD 860 EVO 250GB (Cache), 2x M.2 PCIe 970 500gb NVME (Raid1 Plex and Emby server)
Qnap TVS-1282 i7 - 8x10TB WD White - Raid 6, 2x M.2 Crucial 500gb Raid1 VM),
2x SSD EVO 500gb (Raid1 QTS), 2x SSD EVO 250gb (Raid1 Cache), 2x M.2 PCIe Intel 512GB NVME (Raid1-Servers)
Synology -1817+ - 2x10,2x8,2x6 (Ironwolf) 2x6 WD Red - SHR
Drobo 5n - 3x2TB WD Green, 2x3TB WD Red - Drobo Raid
Buffalo LinkStation - 2x2TB WD
ProBox 8 Bay USB3 - 8x4TB Seagate - JBOD
All software is updated as soon as it's available.
I give my opinion from my experience i.e. I have (or had) that piece of equipment/software and used it! :roll:

wilsodg
Know my way around
Posts: 143
Joined: Mon May 20, 2013 12:34 am

Re: backup vs sync

Post by wilsodg » Thu Aug 22, 2019 3:34 am

One thing to consider when you select the option to remove files.
If files get removed accidentally on the master, and then sync is run on a schedule, you lose your backup.
You might be ok with network recycle, but we had a cache failure and lost multiple files which then also were deleted from the backup (a few folders had the ‘remove deleted files’ option ticked. We had alternate backups as well but worth considering what you would do.


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