Month: April 2014

Interesting data center technical tips / tasks / articles which we come across

SATA, SAS and NL-SAS disks

There are different kinds of hard drives: Serial Attached SCSI (SAS), Near Line SAS (NL-SAS), Serial ATA (SATA), Fiber channel (FC) and Solid State Drives (SSD). FC and SSD are fast and faster disks. Let’s see about the first three. So, what is the real difference between SAS, NL-SAS and SATA disks? SAS Of the…
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April 22, 2014 1

Tape Drive formats or standards

AIT (Advanced Intelligent Tape) AIT is 8mm across and uses helical scanning technique and the MIC (Memory In Cassette) technology to provide increased access. It also supports high data transfer rate up to 78 MB/sec and maximum storage capacity of 500GB compressed using ALDC (adaptive lossless data compression) technologies. DAT (Digital Audio Tape) DAT is…
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April 21, 2014 0

Troubleshooting Auto_ethX issues

With multiple NICs installed, udev would sometimes change order in which they were named. This leads to inconsistent network interface name between reboots. And NetworkManager also creates problems by renaming the interface to Auto_ethX. Ex: auto_eth0 Sometimes, we see that a device is continuously named wrongly or does not allow us to give a specific…
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April 14, 2014 0