In molecular biology, DNA replication is the biological process of producing two identical replicas of DNA from one original DNA molecule. DNA replication occurs in all living organisms acting as the basis for biological inheritance. The cell possesses the distinctive property of division, which makes replication of DNA not essential.
DNA is made up of a double helix of two complementary strands. During replication, these strands are separated. Each strand of the original DNA molecule then serves as a template for the production of its counterpart, a process referred to as semiconservative replication. As a result of semi-conservative replication, the new helix will be composed of an original DNA strand as well as a newly synthesized strand. Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.In a cell, DNA replication begins at specific locations, or origins of replication, in the genome. Unwinding of DNA at the origin and synthesis of new strands, accommodated by an enzyme known as helicase, results in replication forks growing bi-directionally from the origin. A number of proteins are associated with the replication fork to help in the initiation and continuation of DNA synthesis. Most prominently, DNA polymerase synthesizes the new strands by adding nucleotides that complement each (template) strand. DNA replication occurs during the S-stage of interphase.
DNA replication (DNA amplification) can also be performed in vitro (artificially, outside a cell). DNA polymerases isolated from cells and artificial DNA primers can be used to start DNA synthesis at known sequences in a template DNA molecule. Polymerase chain reaction (PCR), ligase chain reaction (LCR), and transcription-mediated amplification (TMA) are examples.

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  1. R

    Sending Snapshot Replication logs to syslog server

    Hello On a DS1821+ running DSM 7.0.1-42218 I've configured Log Forwarding to my syslog server. I've configured Log Center to send logs of all categories with priorities Info, Warn, and Error. While (some) logs are sent correctly to the syslog server, no logs from the Snapshot Replication are...
  2. ed.j

    DSM 7.0 Record File Access Time Frequency cannot be found

    Whenever I open Snapshot Replication it gives me the following pop-up: Unless I am going totally blind, in the Storage Manager this option is nowhere to be seen. The two use cases it mentions are not relevant to me, so I would like to set this option to "Never", but it is nowhere to be...
  3. Micky

    Snapshot Replication and Hyperbackup issues

    Hi guys! I'm having some troubles with my snapshots, replication and obviously a Hyper Backup job. I've set up a share "SGG" on NAS1 (DSM 6.x) and activated local snapshots at 2 AM, every day. Additionally, this share got a replication to NAS2 (DSM 7.x), running on a daily basis, starting at...
  4. H

    Replication Failed: ShareReplica 3019

    I have two local NAS boxes. I have a nightly task to replicate snapshots of a specific shared folder from one to the other. It has been working, but I have intermittently gotten notification of failed replication as below: Failed to sync shared folder replication from [NAS Box 1] to [NAS Box 2]...
  5. N

    DSM 7.0 Veeam Backup & Replication Community Edition vs Veeam Agent Windows

    I just got a DS920+ a couple days ago. For home I am deciding between these two solutions but I am not sure which one is better to use? I simply want to backup my computers (Windows) to my 920+ and also have the ability for bare metal restores if needed. I generally see Veeam as being the best...
  6. chalkyman

    Replication of folders

    I have a shared NAS folder viewable on my PC as a shared drive, which i can copy files to and from, but i then have to copy the files manually from filestation to the Media folder, where i would like the files to exist. Is it possible to have a task setup to automatically copy any new files...
  7. P

    how to mount shared folder snapshot on another NAS

    We have 2 synology NAS's. 1. Head Office - NAS01 2. Site Office - NAS02 Snapshot replication runs successfully from Site Office to Head Office We have setup a 3rd NAS at head office. We need to mount the snapshot on NAS01 t0 NAS03 for users to access this. How do we do this
  8. G

    Snapshot Replication

    Hi, First of all, sorry for my english, I'll try to make it understandable... I use Snapshot replication toibackup schedule backup tasks from Active Backup. I have several interrogations about this method ? The first one is the encryption. There is no encryption on the destination, except...
  9. magefesa

    Any way to move Snapshots to external Cloud ? (No other Server)

    Is it anyway to move/copy Snapshots to external cloud like Google Drive or similar ? Why only another Server ? Thanks guys !
  10. Gunther

    SR stopped working after package update

    Hello, I have the following problem: I have two Synology running DSM 6.2.3. One of them (RS1) receives nightly backups on several volumes via custom scripts. (Scripts use rsync deamon.) The data is then replicated to RS2 via snapshot replication that runs before the nightly backup script. (I...
  11. Telos

    Info Snapshotting and Daylight Savings Time

    Apparently the clock jumping ahead by an hour spurred an avalanche of warnings overnight, as "missed" snapshots queued for execution. Here's a partial list... You just have to love the world of Synology and their fine coding skills :ROFLMAO:
  12. aGraphicz

    Snapshot Replication vs USB Copy

    Hi On the Synology I am using for my business I have set a daily USB Copy task that makes backups on an external USB Drive. This is working fine but for security reasons I would like to also install Snapshot Replication. But I have some questions: - I have at the moment 1.5 TB in use and I...
  13. G

    Snapshot Replication vs HyperBackup

    Is there any significant difference between snapshot replication vs Hyperbackup? I see HB can be scheduled as often as every hour. If HB is scheduled every hour, can this take place of snapshot replication?
  14. NAS Newbie

    Creating a Snapshot Replication - Failed to authenticate the destination server?

    I'm trying to set up snapshot replication to backup my laptop Activebackups from my local NAS to an offsite NAS. Currently, both NAS are on the same LAN as I'm trying to do the first initial large backups on my LAN before moving the 2nd NAS offsite. I have Snapshot Replication installed on the...
  15. DarwinPH

    Delete #snapshot folder

    Greetings, Hope everybody is alright and well. I just want to ask how to delete the #snapshot folder. I have Min.IO server setup on our Syno through docker and it doesn't like any additional folders within its data mount. Thank you!
  16. jono

    Solved Browse snapshots of encrypted shares?

    Most of the shares on my Synology aren't encrypted, but I do have a couple that are encrypted. I've noticed that I can browse any of the snapshots of the 'regular' shares when I want to find & restore a few files or folders. But with the encrypted shares it seems like I can't select a snapshot...
  17. C

    Where does DSM store configuration credentials for Snapshot Replication?

    I'm using snapshot replication to backup my primary NAS to a secondary NAS. To do this, you have to set credentials on the primary NAS for an admin user on the target NAS. I'd prefer to use a service account that only has the required permissions, but according to Syno support this isn't...
  18. R

    snapshot replication

    hi guys will hear if anyone can help me I just bought synology nas DS220j and can't find the program called snapshot replication does anyone know how to get it on greeting remi
  19. N

    NFS failover with shared folder sync/replication?

    Hi There! I have a couple of Synology NAS currently and I wondered whether there was a way to sync NAS1 shared folder A to NAS2 shared folder A such that, if NAS1 goes down, NFS (and potentially CIFS, etc) connections from clients would automatically failover to NAS2? I'm aware of Synology...
  20. Micky

    Snapshot Replication suddenly stopped

    Hi, Out of a sudden, my Snapshot Replication (not creating snapshots on a Btrfs HDD) stopp working. I'm replicating four shared folders from my DS916+ to a DS918+, same LAN, actually are placed side by side. The error I'm receiving on my DS916+ says authentication failure. The password did not...