Questions tagged [corruption]

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3 votes
2 answers
7k 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 ...
5 votes
1 answer
478 views

Active Directory Users - All Attributes Suddenly Blank

We had an instance yesterday where approximately 130 of our well over 5,000 user objects suddenly became corrupted. Every attribute you can possible set with the exception of sAMAccountName and cn ...
0 votes
2 answers
1k views

Purposely corrupt folder name?

I want to intentionally corrupt a folder name so I can test a script on it. Currently the folders are named similar to : 37ee0500-52c0-4a18-861e-0084EF05FB and are located in: /user/members/local/ ...
0 votes
1 answer
979 views

Percona slave crashes with "unexpected PLT reloc type"

I have 2 data centers each with a master/slave database running Percona server 5.5.23. For some reason, one of the slave databases crashed with this error: 03:00:40 UTC - mysqld got signal 11 ; ...
3 votes
2 answers
19k views

mdadm rebooted, array missing? can't assemble?

Not sure what is going on with my Array. I rebooted ubuntu 12.04.1 and got a error on startup that fstab couldn't mount the filesystem UUID I have for my mdadm array. After running a few commands a I ...
0 votes
0 answers
124 views

Exchange 2010 VHD Corrupted But Is Not

I am experiencing a strange problem with my Exchange 2010 server. The virtual disk holding all Exchange databases on the Exchange server is acting like it is corrupted. If I run chkdsk E: /F is says ...
1 vote
2 answers
827 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 ...
9 votes
3 answers
12k views

Causes of sudden massive filesystem damage? ("root inode is not a directory") [closed]

I have a laptop running Maverick (very happily until yesterday), with a Patriot Torx SSD; LUKS encryption of the whole partition; one lvm physical volume on top of that; then home and root in ext4 ...
1 vote
0 answers
677 views

How do I rebuild a VMhost datastore following a corrupted installation

My server was shutdown at the weekend for a planned power outage to our building. When I tried to the bring the server back up, along with some errors about logical drives that did not exist (now ...
0 votes
1 answer
6k views

Dell PowerEdge R720 - Corrupted RAID

Apologies in advance for the lengthy question. We have a Dell PowerEdge R720 server with: 2 x 136GB SAS drives in RAID 1 for the OS (Ubuntu Server 12.04) 6 x 3TB SATA drives in RAID 5 for data A ...
0 votes
2 answers
2k 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) ...
4 votes
1 answer
943 views

MFT corruption on non boot drive. What could happen?

I have a server that is reporting some error messages related to NTFS corruption. It reports that there is possible corruption within d:\$mft However I have not come across any corruption, or ...
0 votes
2 answers
4k views

Corrupt Exchange 2007 Mail Box

We have a power user that we suspect has a corrupted MB (missing emails, etc.). To troubleshoot the issue further, we want to delete this user's Exchange MB, create a new one, associate it with his AD ...
2 votes
1 answer
2k views

FreeBSD pkg database deleted

after resolving repeated crashes on startup with fsck I noticed some files were removed, one of them was the sqlite pkg database, so now when I run for example pkg install somepackage I get this erro: ...
0 votes
2 answers
238 views

Alternatives to SMART for Monitoring HDD Corruption

Given that SMART is unreliable for predicting HDD failure, does anyone have a reliable alternative for automating quick identification of hard drives that are beginning to fail? This is for Windows ...
2 votes
0 answers
2k views

ext4 root filesystem corruption under XenServer 6.2 DomU

We're with a problem with filesystem corruption in guest machines in a XenServer 6.2 It only happens in Linux Machines. Randomly the filesystem remounts as read-only and them corruption starts on the ...
4 votes
6 answers
34k views

Should I stop MySQL repair?

MySQL database (20 Gigabytes of tables and index) went corrupt. I launched the repair option using MySQL-admin graphic interface, now it has been running for 24 hours. When I have check the MyISAM ...
3 votes
3 answers
877 views

Recover from a corrupted couchbase install

We have a couchbase installation on a Windows 2008 R2 server that got corrupted (this was from before my tenure, now I want to clean it up). There is no add-remove entry in the Programs and Features ...
1 vote
0 answers
362 views

Port corruption using iptables NAT on Enterprise Linux 6

I am trying to setup a captive web portal redirect on CentOS using the following configuration: This configuration works for the first few packets, but then suddenly the destination port is corrupted ...
1 vote
2 answers
6k views

MySQL Tables Missing/Corrupt After Recreation

Yesterday I dumped my MySQL databases to an SQL file and renamed the ibdata1 file. I then recreated it and imported the SQL file and moved the new ibdata1 file to my MySQL data directory, deleting the ...
3 votes
1 answer
610 views

could fsck -Af -M cause corrupt filesystem?

Last night my server encounter "Read-only file system" error. So then I ran "fsck -Af -M" to trying to repair but no use, these are output: fsck 1.39 (29-May-2006) e2fsck 1.39 (29-May-2006) /: ...
2 votes
2 answers
2k 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 ...
19 votes
13 answers
356k views

Error 0x80070570: How to delete corrupted and unreadable file?

On my system partition I have a folder which cannot be deleted. This folder has been created by restoring files from an Acronis TrueImage backup. The error message says: Error 0x80070570: The file ...
1 vote
0 answers
560 views

Network File Transfer Failures using Windows 7 Client and Windows CE "server"

Our company has 3 printers from Solidscape, each of which are controlled by a directly attached Windows CE device. This device exposes a file share via SMB which can be used to drop print jobs to be ...
1 vote
2 answers
569 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 \\greyhole\...
0 votes
0 answers
160 views

Errors after moving DB from server

I am moving a database (MS SQL Server) from a server to a new one (virtual machine). Running CHECKDB on the original server I get no errors, the DB is OK. After moving the DB to the new server and ...
0 votes
1 answer
2k views

iSCSI and NFS file locking and concurrency

I've got a linux host that need to mount a data share located on a NAS. The choice is between NFS v3 (NAS limitation) and iSCSI. The initial idea was to have a NFS mount to the file server that ...
2 votes
1 answer
1k views

Why do I keep getting bad index files with Git [closed]

I keep getting the following error: error: bad index file sha1 signature fatal: index file corrupt And I know the short term solution is just to delete the index and away you go but my question is, ...
1 vote
0 answers
202 views

Running SpinRite on SAN attached LUN with NTFS corruption

Got a customer that has an issue with NTFS corruption that is popping up on SAN attached storage. The LUN is RAID-10 (4:1 spindle ratio). The machines are Windows Server 2003 (64-bit), and they are ...
2 votes
1 answer
3k 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 ...
6 votes
2 answers
2k views

Why did I experience checksum errors with a ZFS filesystem on an ESXi RDM?

I have a VMware ESXi 4.1 server which I recently added 2x1TB SATA drives to. This machine runs a NexentaStor Community VM which hosts ZFS filesystems. Before adding the new drives, all the ZFS zpools ...
2 votes
2 answers
158 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 ...
3 votes
4 answers
5k views

Downloads are consistently corrupt, what are the potential causes?

I am consistently experiencing corrupt downloads over TCP/IP and Ethernet on a small LAN, the downloads are coming from different sources on the Internet. WAN is comcast cable.. NIC is brand new. My ...
0 votes
2 answers
1k views

Jenkins SVN checkout borks new files

I am running a Jenkins CI server which polls an SVN server and checks out the (Maven) project and builds it. We have recently changed the build server and I set up Jenkins afresh with the few ...
-2 votes
1 answer
102 views

Linux Server HDD Corrupted

Today I put my forum offline just before scheduled Cpanel backup. An hour later when I checked it says DATABASE error occured(or whatever the database error was) I logged into SSH and perform reboot. ...
1 vote
2 answers
1k views

Escape windows repair install and start in normal boot?

I have a corrupted file in the OS (running a poweredge t410, windows server 2003 RT). Booting up in safe mode shows it stopped at acpitabl.dat. Google results led me to believe that the update.sys ...
2 votes
1 answer
2k views

win2008r2: Delete corrupted directory without reboot

I have a recurring annoying issue on one of my Windows 2008 R2 Web edition servers. The drive in question happens to be a SSD, though I doubt that is relevant. I have a script that I run when I want ...
0 votes
2 answers
3k views

MySQL: Increased buffer pool, ibdata1 corrupt?

I tried increasing innodb_buffer_pool_size via my.cnf from default 128m to 256m, but on restart attempt, mysql shutdown failed with: 130125 11:49:55 InnoDB: Initializing buffer pool, size = 256.0M ...
11 votes
2 answers
3k views

Making SD card corruption-proof

My embedded linux device uses an SD card for saving certain diagnostics data, far too copious for internal flash. The problem is if the device is switched off unexpectedly, the filesystem (FAT32) on ...
0 votes
3 answers
747 views

How can I prevent silent corruption on a dying hard drive? [closed]

With a drying drive (that has more and more bad sectors), on an ext4-journaled partition, a cp operation will sometimes complete without error, but the written data will either be wrong, or just won't ...
0 votes
2 answers
586 views

MySQL Tweaking for performance

[mysqld] myisam_repair_threads=4 key_buffer = 64M myisam_sort_buffer_size = 32M join_buffer_size = 2M read_buffer_size = 2M sort_buffer_size = 2M read_rnd_buffer_size = 2M table_cache = 1024 ...
0 votes
1 answer
423 views

ran fsck on a mounted partition, now centos 5 won't boot

Yes, I very stupidly ran fsck on a mounted parition. Immediate regret. What's happening now is I see grub, it starts booting centos 5, then it says: bin/sh: ro: no such file or directory kernel ...
2 votes
0 answers
2k views

Corrupt mysql system tables

I am having issues with the columns_priv table in the mysql system database. I cannot add new users currently. I have tried repairing it using mysqlcheck --auto-repair --all-databases --password but ...
4 votes
2 answers
3k views

How can I track down the cause of ext3 filesystem corruption?

We have a VMware vSphere 5 environment running CentOS 5.8 virtual machines. In the past two weeks we have had five incidents of virtual machines having a filesytem become corrupt, requiring an fsck to ...
0 votes
1 answer
1k views

Corrupt label; bad magic number

While trying to install Solaris 10 on a Sun Blade 2500 Silver, I got an error: OpenBoot indicates me a problem with the hard drive: "Corrupt label; bad magic number". Later, during the Solaris ...
13 votes
4 answers
2k 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 0.5s,...
2 votes
1 answer
498 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, ...
17 votes
7 answers
12k views

How can I force a MySQL table to become corrupted?

I have written a simple Nagios plugin that calls mysqlcheck (which checks for corrupted tables) and will give a warning if any are corrupt. However none of my tables are corrupt now. So I'm not 100% ...
2 votes
3 answers
6k views

Recurring event log corruption on Windows Server 2008

I didn't get any help on the TechNet forum so I'm going to try my luck here :). Our web server is running Server 2008 SP1, 64-bit Standard Edition. For the past week or so, we've been experiencing ...
7 votes
3 answers
1k views

Chkdsk capabilities

I've used several different tools for repairing disks and have been wondering if there is a list of what exactly CHKDSK can repair? The MFT? Boot sector? Backup boot sector? Clusters? What common ...