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56
votes
8answers
77k views

How do I get current Unix time in milliseconds using bash?

How do I get the current Unix time in milliseconds (i.e number of milliseconds since Unix epoch January 1 1970)?
10
votes
6answers
2k views

How do I effectively destroy a SSD? [duplicate]

What is a repeatable way of destroying SSDs? For example, if i opened it which part could i take out and destroy for just the data(How to identify the actual "storage unit")? Case 1. Normal user that ...
7
votes
3answers
197 views

Need an efficient data container. Moving from storage to memory as quickly as possible

Problem: I need to copy a large block of data from a remote location into system memory as quickly as possible. Scenario: I have a data processing system. The system is built via shell scripts ...
7
votes
1answer
6k views

How can you debug a Data Input Method script in Cacti?

(See bottom for updates...) I've written a data input method script for Cacti (in Ruby, to collects stats from beanstalkd) and it works from the command line (returning a single simple integer, as ...
6
votes
6answers
1k views

Does a CDN still work even when my server is down?

I am a website owner planning to use Amazon's cloudfront S3. I have been reading all the stuffs about what a CDN can do but i still have an unanswered question. Does a CDN still work even when my ...
6
votes
4answers
5k views

I just deleted “/bin”. What's the best way to recover?

I just ran (not on purpose!) rm -rf /bin. I've booted down the computer and am using Finnix to try to recover from it. I have succeeded in mounting the drive, and confirmed that, yes, the entire /bin ...
5
votes
5answers
1k views

Best way to self destruct all data on a linux server? [closed]

We have recently upgraded a number of our servers. We are now left with a few servers we are ready to hand back to our data center. Anyone know what is the best way to do a final self destruction of ...
5
votes
2answers
2k views

Data obtained from ping: is it round trip or one way?

I have 2 servers, each in two separate locations. I need to host an application on one, and the database server on the other. From the app server, if I ping the database server, on average I get ...
5
votes
1answer
4k views

Cacti graph not showing

I have created php script for cacti which outputs data in format like: <variable>:<value> Output of my script: temperature:20 humidity:15 Then I created data input method where input ...
4
votes
6answers
17k views

Check for hard disk errors / signs of failure on CentOS Server

What's the best way to check for HDD errors and early signs of failure on CentOS?
4
votes
1answer
155 views

What is the best way to replicate a large number of SQL 2008 DBs to a failover instance in Amazon Web Services

Our application creates a new sql database for every customer and we will be continually adding new customers and creating new databases every day. These databases can range in size from 3 megabytes ...
3
votes
6answers
705 views

Server RAID died. How would you recover data from its drives?

We have 9 machines at the moment. One of them had an electrical fault which fried the board but the drives seem ok. I'm not entirely sure how I would even attempt to recover data from it. The drives ...
3
votes
3answers
252 views

Server Performance

We have a dedicated server that we use to stage websites (our test server). The performance of the server has become really bad and we regularly have to restart it. When performance is poor I have ...
3
votes
12answers
297 views

Should I host my Data on the same box that I serve my web pages?

I was listening to Hanselminutes one day and this question came up. Under what circumstances should one separate data from code? For example in one of the systems that I've working on the DB is on ...
3
votes
1answer
300 views

Alternatives to gnuplot+awk?

I've needed to do some more sophisticated graphing and plotting as of late. While I know that gnuplot is up to the task, and can do it all from the command line, are there other, simpler or more ...
3
votes
2answers
166 views

How to choose a storage company?

For an ad agency, I need to find a good storage company. There are some things to take in considerations : Support for different OS (Linux, Mac OS X, Windows Xp/Vista) (if it matters) ...
3
votes
2answers
1k views

MDADM RAID 5 data recovery

Thanks for reading this thread and I thank you in advance for any help you can provide. So this is what happened... I noticed that my MDADM RAID 5 array with drives ordered: /dev/sd[EFGHIABCDKJ]1 ...
3
votes
2answers
378 views

google apps - privacy, ownership and location of data

This is not directly technical question. but I think this is an important question for every admin implementing Google Apps instead of their own mail server. I'm pretty excited by the possibilities ...
2
votes
2answers
2k views

Linux-on-Linux KVM: Which filesystem should i use for guest and host?

I'm in the process on playing around with kvm and setting up a linux on a linux-server, so i can reboot the (guest)server encrypt the rootFS of the guest without having to do initramfs-tricks to get ...
2
votes
4answers
312 views

Data Recovery Software (Formatted Hard Drive)

Well... I'd really appreciate your help on this one. It's like this: someone decided to reinstall Windows on his PC, but did not make any backups, and there are a lot of things (well... photos, ...
2
votes
5answers
475 views

Good online data hosting — in Europe?

I'm looking for an online backup provider in Europe (where I live), because those in USA are too slow. Details: My webhost allows me to upload large amounts of data for personal backup purposes, and ...
2
votes
4answers
399 views

Data Corruption (what does it usually look like?)

When you have corrupted data: through packets, or hard drives, what kind of errors do you usually find? Is it a bit tranposition (switched bits)? Is it random noise? (flipped bits)? And when you do ...
2
votes
1answer
80 views

Removing all disks from RAID5 and adding new disk for access/data destruction - will RAID be preserved?

We have a RAID5 array and limited resources. It has been suggested, for data destruction of a SAS drive with a bad sector, to remove ALL drives from the RAID5 array, and then place this 1 drive into ...
2
votes
2answers
137 views

Adding a progress bar to a data pipe

Are there any alternatives to pv? I'd like to see the current transfer rate of a data pipe, a progress bar and an estimated completion time. Any other tools that can do that?
2
votes
2answers
211 views

Storing important information for a company

I work in a web development company and they have all the passwords, host addresses, etc. vital information in a spreadsheet on a local machine in the intranet. While secure from external attacks, I ...
2
votes
3answers
130 views

Recovering data from a damaged disk

So have this problem. Have a 500G disk with data that has crashed. I need to recover data. I used ddrescue to first create an image and I have recovered 455G to that image. Now, I do not know what ...
2
votes
2answers
335 views

How to effeciently copy large amount of data dvd's to disk? [closed]

Anyone have an ideas on how to copy many dvd's to disk effeciently? Currently we are inserting each disk individually and copying them then un-mounting them, inserting the next disk and so on. ...
2
votes
1answer
256 views

Simplicity vs Redundancy

Assume you are tasked with running a set of mission critical web services with a targeted up time of 99.5% To achieve this, you have two identical clusters of hardware in two entirely separate data ...
2
votes
0answers
483 views

SBS 2008 Move Data Wizard crashing. Moving Redirected User Data

We're trying to move Users' Redirected Documents data from C: to D: using the wizard in the SBS console. It keeps crashing though as soon you hit next for the fist time in the wizard. This server has ...
1
vote
2answers
75 views

Is there any option to restore data after deleting from a MySQL table

There are some rows in a table, by mistakenly I had deleted all rows from the table and data got commited. So is there any way to restore data for that table. I am not having backup of the database. ...
1
vote
2answers
79 views

verifying two mirrored directory trees

Is there an easy way to verify that two directory trees on two separate machines are identical, and that all files within the directory tree are also identical? I want to make sure that two separate ...
1
vote
2answers
204 views

Internal Data through firewall to our web site: What are my options?

We have a rather large internal MS SQL Database. I need to provide an interface on our website to some of our buyers. What are some good options for providing data to the website through our firewall? ...
1
vote
2answers
1k views

Improve file transfer speed between Windows PCs and servers [closed]

I've setup a server which I've connected to multiple PCs in my workplace. Sadly, data transfer speeds are at max 3 MB/sec per connection which works out slow for file transfers, especially when ...
1
vote
2answers
619 views

Restore Bacula Files

Q1: Can I restore bacula files to another location? Because whenever I restore my bacula files, it goes directly to the client on which the files was backed up. Q2: Can I restore bacula files if ever ...
1
vote
2answers
265 views

How to leave only e.g. TOP 100 records in ALL TABLES in database (SQL SERVER 2005) [closed]

I'm having a huge database over 100GBs and I need to burn an application (for demonstration purposes) on CD or DVD which uses this huge database... is there a way how to leave for example only first ...
1
vote
1answer
141 views

Reliably and quickly migrate data to a RAID array

We have a web service running on Amazon EC2. Currently we have some live user data stored on a single disk (EBS). We are considering moving to a RAID0 setup (we don't have to be concerned about the ...
1
vote
1answer
74 views

How can i fix the ?????? problem in SQL Server 2000

I got both of mdf and ldf files from user. He told me that it's infected. but my Symantec said it's clean. i can attach it to SQL Server 2000. but all Thai words in all rows and tables became ...
1
vote
3answers
213 views

moving large amount of MYSQL data to another host

I have about a large MYSQL DB(3 TB) that I need to move to another host, which is not yet up. what's the best approach? I plan to either zip the mysqldump or the binary, what is the choice of the zip ...
1
vote
1answer
156 views

MySQL Binary Logging Format - Disk Filling Up

I have a MySQL server instance configured with binary logging enabled. I don't do any replication, but the binary logs are part of our recovery plan - to be able to replay all the transactions since ...
1
vote
1answer
707 views

How to use compression option for ssh with the ProxyCommand?

I want to establish a ssh tunnel for transferring data from my computer to a remote machine through a gateway machine. I want to copy large amount of data, thus I use blowfish for encryption and ...
1
vote
1answer
131 views

Migrating Laserfiche to Alfresco [duplicate]

Possible Duplicate: Laserfiche migration to Alfresco There has been some discussion of how to migrate a Laserfiche repository to Alfresco. Has anyone successfully done so, and what was your ...
1
vote
1answer
261 views

Can I create a IPSEC rule between two servers and still allow normal external traffic?

Simple enough really. Can I create a IPSEC rule/filter between two publically available servers (they are actually on the same network) while still allow external traffic to the same resources. I'll ...
1
vote
5answers
128 views

Amazon to non-Amazon Data transfer

What is the best/fastest way of transferring data from an Amazon EC2 server to a non-Amazon server? Windows to Windows.
1
vote
1answer
766 views

MySQL failed to start after killed a long running “LOAD DATA INFILE” process

I killed a MySQL process which is running a LOAD DATA INFILE command to load a 9GB .csv file into a table in a InnoDB database. Now, when I run mysql DATABASE, it just stopped and showed Reading ...
1
vote
2answers
425 views

POST data not being received

I've got an iPhone App that is supposed to send POST data to my server to register the device in a MySQL database so we can send notifications etc... to it. It sends it's unique identifier, device ...
1
vote
2answers
101 views

Accidently created a partion table (GParted)

I've been tinkering with the Debian side of my dual boot XP/Linux system. Whilst trying to mount a drive so I get get at the .deb wireless files on my external hard drive, (using Gparted) I managed ...
1
vote
4answers
307 views

Migration with SysPrep, ImageX and

I know that you can use SysPrep and ImageX to create a prepared image that can be used on several systems but the question is. How well does it work in a corporate environment of moving machines from ...
1
vote
1answer
22 views

Switch active Sql Server 2008 databases

I am dealing with large imports of data into SQL Server and need to know the easiest way to perform the import and rebuilding of indexes while minimizing the effect on web services that primarily read ...
1
vote
0answers
65 views

Tool to monitor change in data

Is there Windows a tool I can run on my servers to report how much of a change in data there is day to day on our servers/file shares? I'd like to determine if a cloud backup is feasible or if too ...
1
vote
0answers
172 views

Monitoring graphs annotations [closed]

I'm looking for a solution (amongst Graphite, Zabbix, Munin, Nagios and similar) where I'd be able to produce custom charts with data point annotations (labels, descriptions) with multidimensional ...