If you are doing vSphere Design right now. Please remember this AMPRS rule for your design document.
Always think your design decision based on these key factors. Availability, Manageability, Performance, Recoverability, and Security.
Especially if it is for Business Critical Application, then you MUST consider all these factors.
||Indicates the effect of a design choice on the ability of a technology and the related infrastructure to achieve highly available operation.
Key metrics: percent of uptime.
||Indicates the effect of a design choice on the flexibility of an environment and the ease of operations in its management. Sub-qualities might include scalability and flexibility. Higher ratios are considered better indicators.
· Servers per administrator.
· Clients per IT personnel.
· Time to deploy new technology.
||Indicates the effect of a design choice on the performance of the environment. This does not necessarily reflect the impact on other technologies within the infrastructure.
· Key metrics:
· Response time.
||Indicates the effect of a design choice on the ability to recover from an unexpected incident which affects the availability of an environment.
· RTO – Recovery time objective.
· RPO – Recovery point objective.
||Indicates the ability of a design choice to have a positive or negative impact on overall infrastructure security. Can also indicate whether a quality has an impact on the ability of a business to demonstrate or achieve compliance with certain regulatory policies.
· Unauthorized access prevention.
· Data integrity and confidentiality.
· Forensic capabilities in case of a compromise.
These two posts explain the mechanism really well to extend VRA (VMware vRealize Automation) with VRO (VMware vRealize Orchestrator) to execute external script that is located in the External Guest Operating System folders (either Windows or Linux).
It is really useful if you want to execute one of these use cases :
– Silent Installation of Database/Apps platform (ex: SQL Server, Oracle DB, MySQL, PostgreSQL Apache, etc after the VM is deployed)
– Configure parameters in Apps, DB, Middleware, agents (ex: NetBackup agent, Oracle DB, Tomcat, Weblogic, etc) after the VM is deployed)
– Execute other external scripts that is located in Guest OS
Please note that you also can use it with VRO only, if you don’t want to automate the process from VRA.
Can find the posts from these links :
So, sometimes “shit” can happen. Accidentally do rm -rf in linux OS, or click empty recycle bin in windows. Or, disk is corrupt, boot sector is broken, etc. This is a very useful tool to help you to “try” to fix it. Sometimes it works, and sometimes it doesn’t. At least you try… 😉 Err, wrong emoticon, it should be 🙁
TestDisk is OpenSource software and is licensed under the terms of the GNU General Public License (GPL v2+).
TestDisk is powerful free data recovery software! It was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software: certain types of viruses or human error (such asaccidentally deleting a Partition Table). Partition table recovery using TestDisk is really easy.
- Fix partition table, recover deleted partition
- Recover FAT32 boot sector from its backup
- Rebuild FAT12/FAT16/FAT32 boot sector
- Fix FAT tables
- Rebuild NTFS boot sector
- Recover NTFS boot sector from its backup
- Fix MFT using MFT mirror
- Locate ext2/ext3/ext4 Backup SuperBlock
- Undelete files from FAT, exFAT, NTFS and ext2 filesystem
- Copy files from deleted FAT, exFAT, NTFS and ext2/ext3/ext4 partitions.
Download the file from here: http://www.cgsecurity.org/wiki/TestDisk_Download