Questions tagged [redundancy]
In engineering: Redundancy is the duplication of critical components or functions of a system with the intention of increasing reliability of the system, usually in the case of a backup or fail-safe. In information theory: It is the number of bits used to transmit a message minus the number of bits of actual information in the message.
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Windows Storage Spaces 2-Way Mirror behavior in case of a faulty drive
Assuming a simple, fully-provisioned two-way mirror Storage Spaces setup on Windows 10/11, how does it behave when one of the drives gets faulty:
One of the drives cannot read some sectors, and SMART'...
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Need some form of redundancy for Blink Cameras
Please direct me to question if this has already been answered.I searched hard for a duplicate.
I have about 5 Blink network cameras. 3 indoor, 1 outdoor, 1 blink mini. I live in a very boring ...
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How to do redundancy in this topology (isp and firewall)
behind an ISP router, I did setup a firewall that includes (DHCP server, Squid, ClamAV, Light Squid, Snort, Port Forwarding, and OpenVPN), linked to an ethernet switch.
3 PCs, VoIP server(static ...
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How can I solve DiskPart has encountered an error: Data error (cyclic redundancy check)?
I was trying to clean up my SSD through the command prompt and installed the window. However, I could not clean the SSD and it showed Data error (cyclic redundacy check) - image below? Does anyone ...
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Create a redundant folder
The operating system I am using is Windows 10 Enterprise. I had a folder on a shared drive of my employers network with data that was deleted by someone. I don't know who or why. I have found some ...
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How do I migrate from one Synology NAS to two redundant Synology NAS on different locations?
I bought a Synology NAS for myself, a few years ago, and I would like to get another one that would be located at one of my relatives.
My current Synology has 2 disks that are redundant (default ...
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Do par2 files have inner redundancy for bitrot on recovery blocks?
I just found a wonderful looking tool named par2. It can generate error correction blocks for any file I want and use those to later recover corrupted data. I started to wonder if there is any ...
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Most resilient container for archiving many small files
Recently I've setup a new system to handle my data hoarding needs. I have a few HDDs (2TB, 4TB, 8TB, looking to add more soon) in a StableBit DrivePool without duplication. An external 8TB HDD where I ...
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How exactly do btrfs/ZFS (and related filesystems) prevent bit rot?
It seems that, since btrfs development began, various communities have touted both it and ZFS as inherently more advanced filesystems for preventing corruption, bit rot, etc.
What features of btrfs or ...
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Join two routers / internet connections under one SSID
I have two networks.
A & B.
Both A & B have WWW access via independent ISPs.
A is a fast network.
B has the printers.
In theory I'd like to join the networks under one router/SSID and use ...
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Is there a redundant storage method that handles drives of multiple sizes well? What about growth?
I'm looking for something redundant I can just plop on a server with a bunch of garbage drives that just works without the smaller drives crippling the capacity of the larger drives.
Lets say I have ...
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LAN on 2 locations with weak link - how to set up fallback DHCP+RADIUS if there's a disconnect between the locations?
The site concerned is small and it's long, thin and winding, without consent to drill holes. There's an area affected by this, which has a couple of file servers, and 2 sporadically used PCs. To be ...
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Is IPv4 anycast DNS within a single LAN possible?
I am wondering whether it is possible to use IPv4 anycast to have multiple computers in the same IP subnet handle requests from other machines also in the same subnet.
I have two DNS servers on my ...
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Directly connecting two NAS boxes
I have two NAS units: a Synology and a QNAP. They are both connected to my router via a switch, but since both have spare Ethernet sockets, I guessed that they could also be connected directly, ...
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OpenVPN with VRRP on tap device?
I'm trying to set up HA cluster with OpenVPN tunnel however there's one small problem - whereas VRRP on LAN interface is not a problem, I struggle with VRRP on tap device.
keepalived fails to start ...
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