SingTel fined $220,000 for mioTV outage in May this year

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If virtual server is used, rather than traditional physical server, then this problem will not occur.

Virtual servers can be provision with maximum harddisk space required by the content server – by overprovisioned. Then configure the disk space required for thin provisioning – so that unused space will be freed for other usage. However, if more disk spaces are required, virtualised layer will provide more diskspace as needed based on maximum diskspace required.

As virtualisation are required to run on SAN storage, disk arrays will be available and disk spaces will be abundant.

Replication through virtualisation will be a breeze because a redundant VM for another video server can be spawned easily and disk storage can be provisioned easily.

Also instead of replication, another strategy for maintenance can be used – using vMotion through DRS (Distributed Resource Scheduler) to move VM from one physical server to another VM of another physical server. Then maintenance on the primary physical server is a breeze as the vMotion ensure “work on the fly” with almost no downtime or disruption while migrating to the secondary server – ensure a very high SLA to the public.

This is another classic case of SuperConvergence – where media video content are IP-based and stored in IP video server running on TCP/IP. Multimedia comprising voice, image, video and data are now running on digitised IP channel instead of the analogue broadcast channel ---- in this era of SuperConvergence.

So H.323, H.320 voice and video protocol – now run on SIP (Session Initiation Protocol) which is IP-based.

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The above solution very cheap if use NAS instead of SAN storage if SAN is not shared with other application to share the cost - definitely less than the $220,000 fine.

Of course must be willing to pay for good experience IT professional.

But on retrospect, how come the contractor never check the diskspace required in Primary server and the diskspace available in the Backup server before replication?

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But SAN storage using fiber-channel or FCOE will be a more efficient and faster storage solution over NAS that used IP.

Moreover, disk array allowed disk expansion to increase disk space. Also redundancy can be configured for RAID such as RAID 5, 6, 10 - single parity disk, dual-parity disk or mirroring and striping. 

For RAID 5 – if one disk fail, data still can reconstruct.
For RAID 6 – if 2 disks fail, data still can reconstruct.
For RAID 10 – if one set of disk fail, another set of disk can reconstruct.