Posted
by netvope
on Super User
See other posts from Super User
or by netvope
Published on 2010-03-22T13:30:42Z
Indexed on
2010/03/22
13:41 UTC
Read the original article
Hit count: 502
How can I create consistent snapshots of tmpfs or any RAM disks?
© Super User or respective owner
as seen on Ask Ubuntu
- Search for 'Ask Ubuntu'
According to suggestions in this post I am trying to improve my system to run better with a Solid State Drive. But regarding to RAMdisks and /etc/fstab usage I have some understanding problems coming up.
So let's say I add the following lines to /etc/fstab
tmpfs /tmp tmpfs defaults,noatime…
>>> More
as seen on Super User
- Search for 'Super User'
I have a script that decrypts some data to a tmpfs, the directory is secure (permissions), the machine's swap is encrypted (random key on boot) and when the script is done it does a 35 pass wipe (Peter Gutmann) of the cleartext on the tmpfs .
I do this because I'm aware wiping files on a journaling…
>>> More
as seen on Super User
- Search for 'Super User'
How can I create consistent snapshots of tmpfs or any RAM disks?
>>> More
as seen on Server Fault
- Search for 'Server Fault'
/var/log/lastlog gets written to when you log in. The size of this file is based off of the largest UID in the system. The larger the maximum UID, the larger this file is. Thankfully it's a sparse file so the size on disk is much smaller than the size ls reports (ls -s reports the size on disk).
On…
>>> More
as seen on Server Fault
- Search for 'Server Fault'
I was wondering if, and how much, using tmpfs could improve MySQL performance and how it should be done ? My guess would be to do mount -t tmpfs -o size=256M /path/to/mysql/data/DatabaseName, and to use the database normally but maybe I'm wrong (I'm using MyISAM tables only).
Will a hourly rsync…
>>> More
as seen on SQL Authority
- Search for 'SQL Authority'
Snapshot database is one of the most interesting concepts that I have used at some places recently.
Here is a quick definition of the subject from Book On Line:
A Database Snapshot is a read-only, static view of a database (the source database). Multiple snapshots can exist on a source database and…
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
Could some one please help me understand when to use SNAPSHOT isolation level over READ COMMITTED SNAPSHOT in SQL Server?
I understand that in most cases READ COMMITTED SNAPSHOT works, but not sure when go for SNAPSHOT isolation.
Thanks
>>> More
as seen on Dot net Slackers
- Search for 'Dot net Slackers'
Snapshot database is one of the most interesting concepts that I have used at some places recently.Here is a quick definition of the subject from Book On Line:A Database Snapshot is a read-only, static view of a database (the source database). Multiple snapshots can exist on a source database and…
>>> More
as seen on Internet.com
- Search for 'Internet.com'
This article - the fifth in this ongoing series - illustrates how Oracle 11g's new snapshot standby features leverage a physical standby database for application quality assurance testing, including the new Real Application Testing suite.
>>> More
as seen on Stack Overflow
- Search for 'Stack Overflow'
Im attempting to make use of dependency injection in Jboss AS 7 and im having huge difficulties.
I have setup a EAR which contains both a EJB jar and a war.
The war contains a richfaces web app.
Im attempting to inject an EJB from the ejb jar into a faces managed bean with the code below :
public…
>>> More
