This Week in Enterprise Tech 51
From The Official TWiT Wiki
Guest: Francisco Gillett
Topic: Software Defined Storage, Fluke Fiber, and Super Computers.
Recorded: April 19, 2013
Published: June 22, 2013
This Week in Enterprise Tech 51:
Software Defined Storage
On Demand Storage
- Storage is physical, unlike virtual memory and CPU resources there is a persistence requirement.
- Existing storage or off-the-shelf drives can be used.
- Groups RAW storage or virtual disks as one iSCSI targets, which makes them more dynamic.
- In a SAN or NAS a control panel be used to grow or add storage volumes.
- iSCSI is a network driver with a long unique name and is not vendor specific which would be assigned in a SAN or NAS.
- In a virtual cloud, on demand storage (SDS) can use any storage hardware.
- SDS can scale and cross vendors.
- Hardware can be moved and changed, virtual storage can be moved.
In the Data Closet
- Tests fiber quality, length, and events (reflections, corruption, etc.)
- Can be used to inspect the fiber for dirt and scrapes.
- Produces a test light to view pattern.
- Datacenter mode can test for small distance artifacts.
- OTDRs can be used to find specific issues and are very costly. But higher quality gear produces accurate locations of problems.
- Some networkign devices have diagnostic tools built into their transmitter and receivers.
- With cable crushes, it is not clear when the light source is on or off. These reflections can cause collisions and FCS errors.
- DoE PS3 cluster (Road runner) is still today #22 of fastest super computers. Has to be retired due to too much power usage. Drastically more power when compared to faster and slower super computers.
- Moorse Law allows it to be more cost effective to retire old slower and power hungry computers for newer expensive equipment.
- Distributed (Grid Computing) is inefficient and redundant, thus causing wasted resources. Multiple computers may work on the same data as a fail safe.
- Super Computers (Homogenous) are central, use similar hardware, and have a central power and cooling source which can be more efficient.
- Having the power source local, and not converted (From AC to DC for example), there are less power losses.
- Air condition systems are efficient with hot and cold isles, with a large temperature difference between the two.
- Datacenters will get larger and more efficient, wireless requires towers to work.
- RF Engineers are able to engineer printed circuits with paint.
- Wireless sites predicted to consume more power and possibly dwarf datacenter power usage.
- 802.11n uses far less power than 802.11b (10 years prior).
Hardware & Software Mentions
- Recorded Date: April 19, 2012
- Release Date: Jun 22, 2012
- Log line:
- Edited by:
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