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Questions tagged [data-loss]

36 questions
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Computing stripe count for erasure coded storage

I'm setting up a ceph cluster (first time for me) which in the end will be made of ~100 disks spread over 10 hosts. I'm going with a single erasure coded data pool to maximize disk space; my constraints are ~80% efficiency and a fault tolerance of 2…
Nicola Mori
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GKE cluster looses data

I am new to GCP so pardon the ignorance. I have a 3 node GKE cluster that is running a database application. Each node has a 100GB standard persistent disk allocated. However, I find every so often (has happened at least 3 time since august) that I…
Simon Robinson
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Next step when DBCC CHECKDB REPAIR_ALLOW_DATA_LOSS failes

I'm in a situation where a few Tables of a Database (MSSQL2016 - 13.0.5081.1) are corrupted (selecting data failes at some point) There is no valid backup available (the error seems to be present in the DB for a long time) However, i finally end up…
Cadburry
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EXT3: What disk checks should be run after a hard reboot or power failure?

In the event that a hard reboot is performed or a system loses power without a proper shutdown, what checks should be run to verify file-system/data integrity on ext3 partitions? I've heard of fsck, but I've also heard that ext3 makes the need for…
Nick
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ZFS :: bitrot (in checksum)

As far as I know, zfs uses checksums to protect against data loss caused by bitrot. But what happens if a bitrot affects the data of the checksum. Then, does zfs think the data is corrupt or think the checksum is corrupt? Thx 4 any answer, tbol
tbol
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Server reverted to may after reboot

I just had a problem on a client's server, it wasn't responding to anything so I forced a reboot. The client called shortly after to say the website reverted to a version from May. Checked the backups we do every night, and indeed the backup from…
Ulrar
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Ping packets being lost in an odd way

I have 2 servers on the same switch. I'm losing 5% of packets on ~16k pings between the two. Below is my nasty ASCII diagram of the configuration of the network, all machines have a single interface. a b | | -- S1 -- | …
chewy_fruit_loop
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fsck ext4 inode error

Today while I was booting I got an error in an ext4 partition with some inodes. I just entered the root password and run fsck manually but I am a bit worried. fsck warned many times about some errors with inodes and asked me if I wanted to clear…
Javier
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LVM - after server reboot data changes of last 6 month lost

I have a server setup with a Proxmox VE on LVM groups. Today I could not kill some processes, so I decided to reboot the server. This did not work eighter so I had to press the reset button. After the server booted up, the data on the server was set…
Sam
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Entire folders deleted from My Documents periodically with remote logins

I've got a customer who thinks our application is constantly deleting all it's data. It's really becoming a major problem for them. The problem is, there's no way it's us. They are losing not only our entire data folder (which we locate in the…
darron
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Server not responding, after reset, all data rolled few months back

A Debian Server stopped responding earlier today. After hardware reset, the data on server was rolled back several months ago to the state it was in february. How is this possible?Everything, logs, webdata, databases, are as if the computer has been…
Bojan Hrnkas
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From Raid-1 to Raid-5

I want to upgrade from Raid-1 to Raid-5 but don't want loss of data. It seems that the way to do it is some 3rd party programs. Can you recommend me some applications or another way to do that? HP DL380 G6 server; Win2003Server Standard Edition…
Olgun Kaya
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Data integrity after RAID5 crash

After a hard drive died on a RAID5 setup on a legacy system, the Vmware Virtual Machine on it kept on running for a period of 6 months. Needless to say, finally it crashed bad. Now, the dead hard drive has been replaced and RAID5 restoration tools…
Uku Loskit
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mysql data loss after server crash

After the server restarted due to a power cut, we lost all data saved in the database during the morning (client records created in the website). A few minutes before the crash, I was able to see such data on "MySQL Query Browser" during some…
Hooligan
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server 2003 data loss?

I have a server with server 2003 R2 that has shown signs of possible data loss. System event logs are missing a four month time chunk. Before today the last day in the logs is 2/12/2010 then it jumps to todays date 6/4/2010. Some people are saying…
Mike D
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