How much free disk space does the Volume Shadow Copy Service (VSS) need for Hyper-V backups to work

VSS Backup for Hyper V Servers:-

Backing up Hyper-V Virtual Hard Disk (VHD) files requires orchestration between the host and guest OSs. This orchestration uses VSS. During a backup, VSS creates a volume shadow copy to facilitate the transfer of data to the backup. Storing the data for that volume shadow copy requires free space on the disk.

A Microsoft TechNet article titled "Troubleshoot VSS issues which occur with Windows Server Backup (WBADMIN) on Windows Server 2008 and Server 2008 R2 (here: http://technet.microsoft.com/en-us/library/ee692290(WS.10).aspx)" provides the following requirements for free disk space:

"For volumes less than 500 megabytes, the minimum is 50 megabytes of free space. For volumes more than 500 megabytes, the minimum is 320 megabytes of free space. It is recommended that least 1 gigabyte of free disk space on each volume if the volume size is more than 1 gigabyte."


You can determine the shadow storage configuration by running the command ( run as a admin)


c:\programfile\cmd>vssadmin list shadowstorage


Pay particular attention to the value for Maximum shadow copy storage space

Microsoft launches smartphone app called Kaizala

KAIZALA

Microsoft today launched a new smartphone app called Kaizala. Microsoft Kaizala is meant for organizations and businesses to conduct group communications and manage work easily. Microsoft Kaizala is available for both iOS and Android users for free. Additionally, Kaizala Pro, the paid version for enterprises was also launched yesterday.

Microsoft today launched a new smartphone app called Kaizala. Microsoft Kaizala is meant for organizations and businesses to conduct group communications and manage work easily. Microsoft Kaizala is available for both iOS and Android users for free. Additionally, Kaizala Pro, the paid version for enterprises was also launched yesterday.

Every file shared within the group, particularly action cards can be commented on, liked, and shared by users. Groups created in Kaizala have a unique feature of adding members in bulk. Also, the limit of members in one group can go up to millions, as said by Anant Maheshwari, President, Microsoft India. 

Aimed at a mobile-centric world, Maheshwari clarifies that Kaizala is different from existing platforms like Microsoft Teams and Office 365. Both of these products are desktop friendly, and aimed at businesses respectively. Keeping India’s poor internet connectivity in mind, Kaizala is optimized to work offline and on 2G network as well. Maheshwari also says that this is a ‘Made for India’ product, and there are no plans for a global launch yet.

Speaking about Microsoft Kaizala Pro, it can be purchased at a price of Rs 130 per month. It comes with more features like user and group management, system integration and automation using Microsoft Kaizala APIs. Users can also perform advanced reporting and analytics, publish custom actions, create public groups and more.