The tag has no wiki summary.

learn more… | top users | synonyms

14
votes
4answers
960 views

How to store data on a machine whose power gets cut at random

I have a virtual machine (Debian) running on a physical machine host. The virtual machine acts as a buffer for data that it frequently receives over the local network (the period for this data is ...
2
votes
2answers
127 views

Single file changed: intrusion or corruption?

rkhunter reported a single file change on a virtual server (netstat binary). It didn't report any other warning. The change was not the result of a package upgrade (I reinstalled it and the checksum ...
2
votes
1answer
270 views

Which is more durable? MyISAM or InnoDB with innodb_flush_log_at_trx_commit=0 [closed]

I am trying to determine the difference in durability between MySQL's MyISAM and InnoDB when innodb_flush_log_at_trx_commit=0. I am aware of the some of the benefits of InnoDB with ACID. However, ...
1
vote
2answers
304 views

iSCSI no longer recognizing NAS drives

I have two NAS (Seagate Black Armors) connected to our network through iSCSI to a Dell Optiplex 760 running 32-bit Windows 7 and Windows iSCSI Initiator. For some unknown reason, within the last week ...
2
votes
1answer
1k views

mysql.proc has gone corrupt. How can I fix it?

I have a server running Debian 5.0, and MySQL. Suddendly, MySQL stopped working, and after many attempts to fix it, I decided to reinstall it. I installed MySQL 5.1.63, and when started it goes to ...
0
votes
1answer
153 views

strange usb file system corruption

We have a few X7DBT Supermicro motherboards that is using a Kingston DataTraveler 102 USB Flash Drive as a boot drive. The customer had 10 systems and they say that the site had a power failure. Once ...
1
vote
2answers
2k views

How to test integrity of user profile?

A customer of ours was having problems with our application. Eventually they let us know that their user profile was corrupted and creating a new user profile fixed the problem. For future calls, I'm ...
4
votes
3answers
685 views

How do I diagnose network corruption on an Internet path?

I run a few hosts on network A that make requests to servers (which I don't own) on network B, somewhere across the Internet. Unfortunately, many of these requests get corrupted. If I make the ...
-3
votes
1answer
184 views

Cannot Hibernate - Power policy manager error [closed]

I run Windows XP. When I try to "Enable Hibernation" from Control Panel --> Power Options, I get the following error. Power policy manager unable to reserve hibernate file. The file or ...
0
votes
1answer
1k views

Windows Server 2008 repair logonui.exe

I'm fairly certain some data on my server got corrupted and from a dialog box that popped up I think one of the things that got corrupted is logonui.exe I think this because while the server goes ...
1
vote
1answer
415 views

how to send a corrupt netbios packet

I want to send a corrupt netbios Session Service packet to my machine, My goal it to check whether my machine restarts or not upon receiving the corrupt netbios packet (this has happened before and I ...
1
vote
2answers
407 views

Strategies for detecting corruption in Greyhole pools [closed]

Are there any good strategies for proactively detecting data corruption in a Greyhole pool. Suppose the following chain of events happens. c:\> copy swiss_bank_account.txt ...
2
votes
2answers
1k views

MySql crash: Incorrect key file for table

We have a MySql 5.5 database running InnoDB on Linux. One table (named table_search) is running MyISAM to be able to perform full text searches. The table has 823 368 rows. Yesterday we had a server ...
6
votes
5answers
4k views

Weird file corruption when using FTP. Any theories?

Sometimes when I'm uploading a large number of small files via FTP, some of the files' contents will be replaced with FTP control messages. For example, after uploading a website I'll notice that an ...
0
votes
2answers
591 views

Moving files with batch files from one pc to a server, to a another pc - worried about disk corruption

I use scheduled tasks that calls a batch file, that calls more batch files to move about three files from a pc, to a server, then to multiple other pcs. It all happens very quickly, as they are small ...
3
votes
1answer
3k views

logfile deleted on Oracle database how to re-create it?

For my database assignment we were looking into 'database corruption' and I was asked to delete the second redo log file which I have done with the command: rm log02a.rdo this was in the ...
3
votes
2answers
370 views

Detecting data corruption so we're not backing up corrupt files

I've been thinking about data integrity, I currently backup about 2tb of data and always have one backup of data from a year ago. My concern is if a file became corrupt on our production file server ...
0
votes
1answer
56 views

how safe are FS recovery operations?

I just needed to do a recovery of a vserver after a failed update. Because the scope of the affected files wasn't exactly known, I completely restored most directories, except /home which was not ...
2
votes
3answers
793 views

CentOS Superblock corruption?

I'm on CentOS 5.2 and I'm having a problem booting my two database servers. Our IT department performed a SAN upgrade over the weekend and now I can't boot - they say the upgrade went fine but ...
0
votes
1answer
902 views

NTFS error 55 after rebooting a Windows 2008 Web Server

This one really drives me around since a year or so: Having a public Windows 2008 Web Server (behind a firewall) that runs perfectly smooth, I have lots of troubles when rebooting this server (e.g. ...
5
votes
1answer
499 views

Corrupt files' contents, while FS is OK

Looks like my USB HDD is old and corrupted: rsync: read errors mapping "path/to/file.jpg": Input/output error (5) Syslog: kernel: [58927.940676] sd 6:0:0:0: [sdb] Unhandled sense code kernel: ...
1
vote
4answers
469 views

Outlook 2010 clients corrupts every .pst archive opened

We have got an installation of Outlook 2010 that corrupts every .pst archive opened with it, except for a newly created test archive which only had one mail in it. All archives cannot be opened and ...
1
vote
0answers
842 views

Corrupted RDP Certificate

One of our machines crashed earlier, so I connected to it to find out what the issue was. It has been spitting out the following error in the logs for the past couple of days apparently... The RDP ...
5
votes
5answers
827 views

md5sum of large files gives different results sometimes

I have an AMD quad core, 8 gb RAM, 1 SSD EXT2 (2 months old), 2 HDD EXT4, approximately 1 year old. I'm using Ubuntu 10.04 x86-64 and when I compute the md5sum of large files (9 GB) sometimes I get ...
5
votes
2answers
6k views

Prevent data corruption on ext4/Linux drive on power loss

I have some embedded boards running American Megatrends bios with embedded linux as the OS. The problem I have is that the industrial flash ide's will be corrupted on power loss. I have them ...
0
votes
1answer
130 views

MySQL table keeps corrupting, need a simple fail over solution?

One of my clients servers recently crashed at the planet, we got an automatic email from them that they had to do a hard reboot. Since then mysqld stops running occasionally and then shopping cart ...
1
vote
0answers
40 views

Intermittent javascript download issue

I posted this question on stackoverflow, then it was suggested I try here, as it seems it could be a server issue. After having no issues on my development xampp box, once I put my site live onto my ...
2
votes
1answer
6k views

Lotus Notes is reporting: 'RRV bucket is corrupt.' when attempting to open an NSF database

I'm using the Lotus Notes Client version 8.5.2 on Windows. Its reporting error code 0x139e, 'RRV bucket is corrupt.'. I've tried opening it with and without the "fixup" flag but both fail with the ...
4
votes
2answers
577 views

Can't access NTFS file after BSOD. Corruption undetectable by chkdsk?

We have several files on a Windows server that show up in directory listings but can't be accessed. I can take ownership of the files, and the ACL shows that Everyone has read/write/execute access; ...
2
votes
1answer
345 views

Will repairing a MySQL table run the risk of data loss?

I recently had a table in my MySQL DB go haywire (part of my Invision Power Board install) which has never happened to me before. If I use the "Repair" tool in phpMyAdmin, will I run the risk of data ...
3
votes
2answers
5k views

Problem with msiexec.exe locking up when installing / uninstalling

I am running two virtual 2008 Windows Servers that have been having some reoccurring problems for the past few months. Msiexec.exe seems to run and always freezes at 25% cpu usage and around 12 - 15k ...
-1
votes
1answer
282 views

MySQL: Corrupt ARCHIVE table. Help, Please?

I'm a programmer and a total newbie as a sysadmin... Today I started receiving error emails from our production site: Incorrect key file for table 'xxx'; try to repair it I found the server with 2 ...
2
votes
3answers
1k views

Corrupt Linux sda3 var drive - need some files

It's 3 a.m., and my hosting company says a 'networking issue' occurred and, in summary, they can replace the hard drive that has developed a 'fault', but they will not assist me in recovering my data ...
1
vote
2answers
600 views

Copying /var/lib/mysql files over resulted in InnoDB corruption

My server had to be re-installed yesterday so they replaced the hard drive and hooked the old one up via USB. I grabbed the database files (/var/lib/mysql) and downloaded them and then I erased all ...
0
votes
2answers
1k views

To salvage data from unresponsive VMWare Infrastructure Web Access Virtual Machine's VMDK file (Win 2003)

Similar to my previous question Cannot delete unresponsive machine on VMWare Infrastructure Web Access on Windows 2003 host and now YET another virtual machine has stopped at 95% (while starting up) ...
3
votes
1answer
4k views

CentOS 5.6 unexpected inconsistency how to repair?

This morning I found that my server was not responding and wasn't able to connect to it in anyway to do a safe reboot. I had to do pull the plug to reboot. Upon rebooting everything appeared to be ...
2
votes
0answers
1k views

Firebird 2.5 Database Corrupt

We have an issue where a database hangs the server when: a backup is performed (Hangs on a specific table) selecting * or count(1) from a specific table or viewing data that is related to the table ...
0
votes
2answers
10k views

gunzip: invalid compressed data--format violated

Problem definition: I transferred a tar.gz file from a Linux machine to a Windows partition.The Windows partition has mounted with the Linux server as cifs. OS : Red Hat Enterprise Linux Server ...
1
vote
0answers
2k views

How do deal with SQL Server transaction log corruption

We had a failure with our SQL Server log shipping job. sp_readerrorlog reported: Backup detected log corruption in database X. Context is Bad Middle Sector. LogFile: 2 'D:\Database\X_log.MDF' VLF ...
0
votes
1answer
459 views

File corruption issue AIX jFS2

I have an application which is doing a lot of file operations.Its doing a lots of file read and write operations(lot of small files). We have found that some of the files are getting mixed up ...
1
vote
1answer
323 views

MySQL InnoDB random data corruptions: hardware or software errors?

I'm an administrator of a social game which uses MySQL(Percona 5.1.56 to be precise) for data storage(all tables have InnoDB type). There are about 2 millions of players in the game and database size ...
0
votes
1answer
848 views

PHP fails to start sessions - disk corrupted?

In my Linux server, I can't login to my PHP application having an issue related to PHP sessions: PHP Error Logs: [Sat May 21 21:27:50 2011] [error] [client ] PHP Warning: Unknown: ...
1
vote
2answers
167 views

Win 2003 Server: corrupted folder / free disk space

I have a corrupted folder on my win 2003 server which is occupying a lot of hd space, unfortunately there's no way deleting it - when showing its properties it shows several GB of occupied space but ...
6
votes
3answers
2k views

How to cause file system corruption for test purposes?

AFAIK the reasons for file system corruption are as follows: improper shutdown (hard reset); hardware failures (bad block on disk, bad disk controller); improper startup (mounting damaged file ...
0
votes
1answer
756 views

How do i stop Squid proxy from corrupting jar-files?

Our internal corporate NTLM proxy (Also Squid i think) randomly returns 407 errors for some reason, and it's pointless to even try to get someone to fix that. I have on my Windows computer an ...
0
votes
2answers
55 views

HDD partition corrupting

I manage a server for a nursing home. The system is running 3 x 320GB SAS drives in a RAID5 array. This is split into 6 partitions. The partition which stores all the users profiles becomes corrupt ...
0
votes
1answer
1k views

Mysqld not starting due to apparent db corruption

I am very new at admining mysql, and bad for me, something caused the db to get clobbered. There are many error messages in the log that I am not sure how to safely proceed. Can you give some tips? ...
6
votes
2answers
1k views

How to make a Linux software RAID1 detect disc corruption?

This is one of the nightmare days: A virtualized server running on a Linux SW-RAID1 runs a VM that exhibits random segfaults in seemingly random codechunks. While debugging I find that a file gives ...
4
votes
1answer
158 views

Queries passed to SQL Server are getting corrupted

We are experiencing a bizarre error with our application at a customer site. We have managed to narrow it down to the point where we can replicate the behaviour using just Management Studio and SQL ...
3
votes
3answers
716 views

Files on ext4 on Drobo with corrupt, zero-ed out blocks

I have a 2TB ext4 file system (Ubuntu running Linux kernel 2.6.31-22-server x86_64). This file system is the second drive on a Drobo box plugged in via USB. We've not had problems on the first drive ...