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Slides from Red Hat Summit ?Open Source Backup? Presentation
Here are my slides used for presentation at Red Hat Summit in Boston last week:
Zmanda: Open Source Backup (.odp open office format, 1.7MB)
Copy hard disk or partition image to another system using a network and netcat (nc)
Copy hard disk or partition image to another system using a network and netcat (nc)
CacheFly: Start Delivering -
A Snapshot of Snapshots
Storage Snapshots are excellent tools in arsenal of a system administrator to create quick and consistent backups of their databases and applications. Snapshot is a “picture” of a filesystem at a point-in-time. In most modern snapshot implementations, this “picture” is not a full copy of the data, but rather a set of pointers to the data.
Here is a list of current industry leading snapshot technologies:
- LVM Snapshots: Snapshot capability built into the Linux Volume Manager (LVM) - the default option on a Linux system.
- ZFS Snapshots: Snapshot capability built into the ZFS filesystem on Solaris and OpenSolaris
- NetApp SnapShots: A feature of the WAFL® (Write Anywhere File Layout) filesystem
- Windows VSS: Volume Shadow Copy Service from Microsoft introduced in Windows Server 2003. VSS is also available with Windows XP, Vista, and 2008 Server.
- VxFS Snapshots: Snapshot capability built into the Veritas File System
- EMC SnapView: Snapshot capability on the EMC CLARiiON storage systems
- IBM FlashCopy: Available in the IBM Storage Subsystems (DS8000, DS6000, ESS 800, SAN VC)
- EqualLogic Smart Copy: Feature in the Dell EqualLogic PS Series
Our Zmanda Recovery Manager for MySQL product uses storage snapshots as one of the technologies to do a quick full backup of the MySQL database. We currently support LVM, ZFS, NetApp, VSS and VxFS Snapshots. Rest are coming soon…
Bacula, the Network Backup Tool for Linux, Unix, and Windows
Highly Scalable MySQL Backups using Snapshots (ZFS or NetApp)
We have been focusing on providing the best possible backup solution for following scenario: 100 GB+ of data stored in MySQL database, Transaction intensive workload (i.e. rapid rate of change of data), with a business requirement to be able to perform point-in-time restoration of the MySQL database. Oh, the solution also needs to take into account that the database can grow to 1TB or more very quickly.
For such a scenario, we believe that the best possible solution today is a combination of:
- Storage level snapshots - a capability built into ZFS (Solaris), NetApp, LVM (Linux), VxFS, and VSS (Windows)
- Transaction logs generated by MySQL
- Point-and-click restore capability provided by Zmanda Recovery Manager for MySQL
Two reports came out today which go into nitty-gritty of above. First is a joint report written by NetApp and Zmanda engineers, titled “MySQL Backup and Restore Using Zmanda Recovery Manager and NetApp Snapshot Technology“. This report describes how NetApp Snapshot and Zmanda Recovery Manager can be used to back up and restore a MySQL database for NetApp storage systems. Specifically, this report covers the following topics:
- Infrastructure required to deploy Zmanda Recovery Manager for MySQL with a NetApp storage system
- Backing up a MySQL database using Zmanda Recovery Manager using NetApp Snapshot plug-in
- Restoring a MySQL database using Zmanda Recovery Manager
Second one is a how-to blog written by Paddy on O’Reilly Databases: MySQL backups using ZFS snapshot. A key observation is sub-second time spent holding the read lock on the database while the snapshot was being taken.
While performing point-in-time recovery of their MySQL databases, DBAs don’t have to search for specific snapshots and manually combine them with database transaction logs. Zmanda Recovery Manager takes care of that behind the covers. DBAs simply key-in (or point-and-click) the timestamp to which they want to recover to.
Webcast - Enterprise Backup to Amazon S3
We are hosting a webcast tomorrow to talk about backing up corporate data to Amazon?s Simple Storage Service (S3) using Amanda Enterprise. We will demonstrate live, how enterprise users can now use Amanda Enterprise to harness Amazon S3 for a complete data backup, archiving and disaster recovery solution. The webcast will take place on Wednesday February 13 at 10:00AM PST and will last about an hour, including a Q&A session at the end. We hope you can join us to discover a new & cost effective way to leverage online storage services such as Amazon S3 as a part of your corporate data protection strategy. Click here to register.
Upgrade Cisco IOS in a Router or a Switch
upgrading IOS on Cisco routers and switches is hightly recommendable because of the following reasons
Patch critical vulnerabilities: Just like any other network device or application, Cisco routers and switches are also prone to security holes. And because routers and switches are critical to network infrastructure, you should plug these security holes as soon as possible.
(...)
Read the rest of Upgrade Cisco IOS in a Router or a Switch (385 words)
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Upgrade Cisco IOS in a Router and a Switch
upgrading IOS on Cisco routers and switches is hightly recommendable because of the following reasons
Patch critical vulnerabilities: Just like any other network device or application, Cisco routers and switches are also prone to security holes. And because routers and switches are critical to network infrastructure, you should plug these security holes as soon as possible.
(...)
Read the rest of Upgrade Cisco IOS in a Router and a Switch (385 words)
© Admin for Debian Admin, 2008. | Permalink | No comment
Add to del.icio.us
Search blogs linking this post with Technorati
Want more on these topics ? Browse the archive of posts filed under Network.
Debian: Debian Admin Step By Step Tutorials and articles with screenshots