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-3
votes
1answer
76 views

The Backup Paradox [closed]

I have been thinking about how large companies backup their data. I imagine that in some critical enterprises they must consider every possibility and can't afford to lose even one bit of data. Of ...
-4
votes
1answer
83 views

Data Loss after Server Reboot [duplicate]

I have server on 2 ssd disks connected by Raid 1 Today I got 500 internal error on opening website. I have requested server management to reboot the computer. After reboot to my surprise all my ...
0
votes
1answer
129 views

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 ...
0
votes
0answers
57 views

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 ...
0
votes
1answer
41 views

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 ...
3
votes
2answers
175 views

Appropriate network monitoring tool(s) for logging hiccups

I have a customer who has problems with our software crashing from time to time. Unfortunately, if you unplug the network cable in the middle of a transaction our software will crash every time and ...
0
votes
1answer
37 views

RAID1 Disk blocks don't match but no errors

So I have couple of disks configured with RAID1. The device is: md2 : active raid1 sda5[0] sdb3[1] 274324348 blocks super 1.1 [2/2] [UU] bitmap: 1/1 pages [64KB], 65536KB chunk Though when I ...
0
votes
0answers
73 views

Is it possible to perform a clean install without losing software RAID 5 data?

I have a machine running Ubuntu 12.10. It has 3 1TB drives running software RAID 5 (each drive has a main,and swap partition. 3x main partitions are raided and mounted as /, 3x swap partitions are ...
0
votes
3answers
189 views

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, ...
-2
votes
1answer
49 views

How to track down data loss at /home?

On a Linux server, there seems to be loss of data at users homes. Where can we find information about the possible loss of data? How to proceed to change the defective Disk (supposing that the ...
3
votes
2answers
385 views

Save data after accidental dd format

as embarrassing as it sounds I managed to dd a debian iso to an external hd instead of my usb pen drive. now my 1.5 tb western digital has 1 700mb partition named debian and the rest is unallocated ...
2
votes
2answers
545 views

Server hang - data loss on reboot, post mortem analysis

A development server I'm responsible for (ext3 on raid 5 w/Debian Squeeze) froze up over the weekend and I was forced to reset it, as in unresponsive from KVM/physical keyboard access, no eth devices ...
0
votes
2answers
847 views

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 ...
0
votes
2answers
142 views

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 ...
0
votes
1answer
540 views

How to investigate frequent but dissimilar data-loss events

I have a Xen domU provided by a third party, running Ubuntu (10.04, server edition, stock -server kernel). This server runs Dovecot and Exim4, with mail stored in Maildirs, and runs a fairly typical ...
1
vote
4answers
5k views

LVM vs RAID0 vs RAID “linear” - Combine 2 disks as one, data recovery?

given two 2TB USB external disks that have to be combined to one 4TB volume and formatted with one big Filesystem (XFS), I have a small question to ask. Does LVM provide better Data recovery, should ...
0
votes
2answers
340 views

Periodic Mysql Data loss

Almost once in 2 weeks,i am facing mysql data loss in a table. almost 600 rows are being deleted. I cant trace that issue. What may cause this or how can i trace who/what makes it ? Thanks
0
votes
1answer
52 views

Retransmissions or loss of data

Friend of mine asked me a question lately. He wanted to know if JMS is handling duplicates in a way that the receiving side doesn't have to worry about this. This made me think about communication in ...
2
votes
1answer
191 views

Is there a risk of data loss on RAID1 when RAID controller stops working?

I heard that using RAID5 or RAID6 can be problematic: if RAID controller stops working, there is too much pain to recover the data when you do not have another controller of the same type. Now, is it ...
0
votes
2answers
538 views

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 ...
1
vote
1answer
406 views

mysql Data loss after server restart [duplicate]

Possible Duplicate: 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 ...
0
votes
1answer
101 views

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 ...
5
votes
3answers
2k views

2 drives “failed” on a 3 drive RAID 5

But I don't believe it. The machine is a Dell PowerEdge 2600 server running Windows Server 2008 trial 32bit (yah, its not supposed to...but it works! [well, it used to]). For the sake of confusion: ...
0
votes
2answers
178 views

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, ...
0
votes
6answers
2k views

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 ...
1
vote
4answers
4k views

Windows 7 won't recognize my data disk partition [closed]

Help! i can't access my data disk! I got 2 harddisks The first one contained one partition with Windows XP on it. the second harddisk contained one partition used only to store data(non-bootable). ...
4
votes
3answers
2k views

Data loss due to MySQL DRBD Heartbeat failover script

Using DRBD version: 8.2.6 (api:88/proto:86-88) Here is the contents of /etc/ha.d/haresources db1 192.168.100.200/24/eth0 drbddisk::mysql Filesystem::/dev/drbd0::/drbd::ext3::defaults mysql ...
4
votes
4answers
493 views

Last time SQL Server downtime or data-loss occured, what happened?

This isn't a question about how to cope with or limit downtime or data-loss, I know all about that. I'm putting together a 'stories' section for my PASS post-con on disaster recovery and I'd like to ...