Dishwasha - Slashdot User

Submission + - Is non-USB flash direct from China safe?

Submitted by Dishwasha on Friday November 14, 2014 @04:02PM

Dishwasha writes: I recently purchased a couple 128GB MicroSDXC card from a Chinese supplier via Alibaba at 1/5th the price of what is available in the US. I will be putting one in my phone and another in my laptop. A few days after purchased, it occurred to me there may be a potential risk with non-USB flash devices similar to USB firmware issues.

Does anybody know if there are any known firmware issues with SD or other non-USB flash cards that could effectively allow a foreign seller/distributor to place malicious software on my Android phone or laptop simply on insertion of the device with autoplay turned off?

Submission + - Experience with Free To Air

Submitted by Dishwasha on Tuesday April 01, 2014 @09:49AM

Dishwasha writes: Just a few days ago I incidentally discovered a little known secret called free-to-air. Amazingly enough even in the depths of /., there appears to have been no postings or discussions about it. Just like over-the-air programming, there is free programming available via various satellite systems that only requires a one-time cost of getting a dish and receiver. Both Amazon and Ebay appear to have a plethora of hardware out there. I personally settled on the Geosatpro MicroHD system with a 90cm 26lbs light-weight dish (queue lots of comments about my describing 26 lbs as being light-weight) and I should be receiving that in just a few days.

I'm curious, who else is using satellite FTA on /.? What are your setups? Has anyone hacked on any of the DVR/PVR devices available? Besides greater access to international programming, what are your channel experiences?

Submission + - What do you do to stay fit? 1

Submitted by Dishwasha on Thursday March 14, 2013 @10:15AM

Dishwasha writes: What do you do to stay fit? Probably like many of you, this code monkey has lead a fairly sedentary life consisting most on fritos, tab, and mountain dew. Every time I attempt to incorporate exercise in even the most modest amount it never really seems to work out. "Just do it" or joining and going to a gym just doesn't seem to work and with time being my most precious resource at this point, I would like to incorporate exercise in to my daily work process. Our office recently switched to standing desks, which is great, and I would like to possibly bring in a flat treadmill that fits under the standing desk, but my bosses have balked unless the equipment is whisper silent. We are a small business in a traditional office park with no exercise facility. Do any other geeks out there have a similar set up and would like to share what they use to stay heart healthy and improve circulation during their work day? What other ways do you incorporate exercise in to your geeky or nerdy lifestyle?

Submission + - How would you build a micro satellite?

Submitted by

Dishwasha

on Wednesday December 19, 2012 @01:08PM

Dishwasha writes: "After reading about the possibility of an earth-link planet "only" 12 light years away, I instantly thought about the possibility of sending an amateur micro satellite. Although such a thing would not reach 12 light years in my lifetime, perhaps the satellite would be a legacy that I could hand over to my children and they to their children, etc. From my perspective, the sooner we start sending out probes in to the universe and the more we send out, the earlier the start we get in exploring the universe beyond just our singular earth perspective.

A fellow co-worker of mine turned me on to the CubeSat standard and apparently there are commercial space companies that will launch CubeSat systems from their payload for a modest fee.

Is anybody in the /. community involved in amateur micro satellite systems? How would I go about getting involved at an amateur level? Are there any amateur user groups and meetups I can join? I have limited background in all the prerequisites but am eager to learn even if it takes a lifetime. Any links to design and engineering of satellites would be appreciated."

Submission + - Which OSS Clustered Filesystem should I use?

Submitted by

Dishwasha

on Monday October 31, 2011 @03:09AM

Dishwasha writes: "For over a decade I have had arrays of 10-20 disks providing larger than normal storage at home. I have suffered twice through complete loss of data once due to accidentally not re-enabling the notification on my hardware RAID and having an array power supply fail and the RAID controller was unable to recover half of the entire array. Now, I run RAID-10 manually verifying that each mirrored pair is properly distributed across each enclosure. I would like to upgrade the hardware but am currently severely tied to the current RAID hardware and would like to take a more hardware agnostic approach by utilizing a cluster filesystem. I currently have 8TB of data (16TB raw storage) and am very paranoid about data loss.

My research has yielded 3 possible solutions. Luster, GlusterFS, and Ceph.

Lustre is well accepted and used in 7 of the top 10 supercomputers in the world, but it has been sullied by the buy-off of Sun to Oracle. Fortunately the creator seems to have Lustre back under control via his company Whamcloud, but I am still reticent to pick something once affiliated with Oracle and it also appears that the solution may be a bit more complex than I need. Right now I would like to reduce my hardware requirements to 2 servers total with an equal number of disks to serve as both filesystem cluster servers and KVM hosts.

GlusterFS seems to be gaining a lot of momentum now having backing from Red Hat. It is much less complex and supports distributed replication and directly exporting volumes through CIFS, but doesn't quite have the same endorsement as Lustre.

Ceph seems the smallest of the three projects, but has an interesting striping and replication block-level driver called Rados.

I really would like a clustered filesystem with distributed, replicated, and striped capabilities. If possible, I would like to control the number of replications at a file level. The cluster filesystem should work well with hosting virtual machines in a high-available fashion thereby supporting guest migrations. And lastly it should require as minimal hardware as possible with the possibility of upgrading and scaling without taking down data.

Has anybody here on Slashdot had any experience with one or more of these clustered file systems? Are there any bandwidth and/or latency comparisons between them? Has anyone experienced a failure and can share their experience with the ease of recovery? Does anyone have any recommendations and why?"

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