This is a quick message to my forwarding partners that on Sunday, October 27, 2013, the SJVBBS (W6RAY) BBS will be offline for a short time. The BBS will be moved to a Raspberry Pi with two TNC-Pis connected to it. This setup will be located entirely at the repeater site (Park Ridge) instead of via remote. The gateway IP address will remain the same as will the AMPR IP addresses.
The setup is currently in testing using a different alias and SSIDs at ground level. If the test is successful, then it will be installed at the repeater site.
Do you have external storage? The SD cards tend to corrupt over time, especially if they have a lot of delete and write cycles.
------------------------------ John D. Hays K7VE PO Box 1223, Edmonds, WA 98020-1223 http://k7ve.org/blog http://twitter.com/#!/john_hays http://www.facebook.com/john.d.hays
On Sun, Oct 20, 2013 at 8:39 PM, Ray Quinn w6ray@sbcglobal.net wrote:
(Please trim inclusions from previous messages) ______________________________**_________________ This is a quick message to my forwarding partners that on Sunday, October 27, 2013, the SJVBBS (W6RAY) BBS will be offline for a short time. The BBS will be moved to a Raspberry Pi with two TNC-Pis connected to it. This setup will be located entirely at the repeater site (Park Ridge) instead of via remote. The gateway IP address will remain the same as will the AMPR IP addresses.
The setup is currently in testing using a different alias and SSIDs at ground level. If the test is successful, then it will be installed at the repeater site.
--
73 de Ray Quinn W6RAY Visalia, CA DM06ih
SJVBBS W6RAY 44.2.10.1
______________________________**___________ 44Net mailing list 44Net@hamradio.ucsd.edu http://hamradio.ucsd.edu/**mailman/listinfo/44nethttp://hamradio.ucsd.edu/mailman/listinfo/44net http://www.ampr.org/donate.**html http://www.ampr.org/donate.html
Or else get the type specifically meant for that purpose (industrial/commercial grade). They have much higher write cycles and leveling algorithms to distribute the write cycles more evenly across the device.
Michael N6MEF
-----Original Message-----
_______________________________________________ Do you have external storage? The SD cards tend to corrupt over time, especially if they have a lot of delete and write cycles.
Which brands/types of flash don't have leveling algorithms in them? It was my understanding this is a necessity.
Which brands/types are commercial/industrial grade?
Regards, Geoff Joy -ke6qh-
On Oct 20, 2013, at 22:30, "Michael E. Fox - N6MEF" n6mef@mefox.org wrote:
(Please trim inclusions from previous messages) _______________________________________________ Or else get the type specifically meant for that purpose (industrial/commercial grade). They have much higher write cycles and leveling algorithms to distribute the write cycles more evenly across the device.
Michael N6MEF
-----Original Message-----
Do you have external storage? The SD cards tend to corrupt over time, especially if they have a lot of delete and write cycles.
44Net mailing list 44Net@hamradio.ucsd.edu http://hamradio.ucsd.edu/mailman/listinfo/44net http://www.ampr.org/donate.html
It's not a brand issue, per say, although some brands are more targeted toward consumers. Search MLC vs. SLC and you'll learn about the differences in the underlying structure and why SLC is more expensive but also more reliable and lasts 10 to 20 times longer. And yes, I suppose all SSDs have a leveling algorithm but the hardware engineers at my last company got non-disclosure access to the algorithms from different suppliers and commented that there's definitely a significant difference.
Another thing you can do to extend the life is to get a bigger drive than you normally would. The rule of thumb is that if you double the size of the storage, you double the lifetime. (Actually, it's intuitively obvious that if there is double the amount of space, then each part of the space should be used half as much.)
These guys produce custom PCs for commercial, automotive, industrial systems. You can see a few types/vendors there.
http://www.logicsupply.com/categories/flash_storage
Michael N6MEF
-----Original Message----- From: 44net-bounces+n6mef=mefox.org@hamradio.ucsd.edu [mailto:44net-bounces+n6mef=mefox.org@hamradio.ucsd.edu] On Behalf Of Geoff Joy Sent: Sunday, October 20, 2013 11:08 PM To: AMPRNet working group Subject: Re: [44net] SJVBBS W6RAY
(Please trim inclusions from previous messages) _______________________________________________ Which brands/types of flash don't have leveling algorithms in them? It was my understanding this is a necessity.
Which brands/types are commercial/industrial grade?
Regards, Geoff Joy -ke6qh-
On Oct 20, 2013, at 22:30, "Michael E. Fox - N6MEF" n6mef@mefox.org
wrote:
(Please trim inclusions from previous messages) _______________________________________________ Or else get the type specifically meant for that purpose (industrial/commercial grade). They have much higher write cycles and leveling algorithms to distribute the write cycles more evenly across the device.
Michael N6MEF
-----Original Message-----
Do you have external storage? The SD cards tend to corrupt over time, especially if they have a lot of delete and write cycles.
44Net mailing list 44Net@hamradio.ucsd.edu http://hamradio.ucsd.edu/mailman/listinfo/44net http://www.ampr.org/donate.html
_________________________________________ 44Net mailing list 44Net@hamradio.ucsd.edu http://hamradio.ucsd.edu/mailman/listinfo/44net http://www.ampr.org/donate.html
Do you have external storage? The SD cards tend to corrupt over time, especially if they have a lot of delete and write cycles.
Lots of good info here:
http://www.raspberrypi.org/phpBB3/viewtopic.php?f=9&t=850
Bill
While this may be slightly off topic, since many are using Pis now, what's the recommended drive for these units? (make/model please).
Thanks in advance.
I have sucessfully used Trendnet 8GB Class 10 SD cards I also have now 2 Kingston 128GB Class 10 SD cards
How ever I recommend referring to the Compatability Charts see>
http://elinux.org/RPi_VerifiedPeripherals
73 Jerry
On 10/20/2013 8:39 PM, Ray Quinn wrote:
(Please trim inclusions from previous messages) _______________________________________________ This is a quick message to my forwarding partners that on Sunday, October 27, 2013, the SJVBBS (W6RAY) BBS will be offline for a short time. The BBS will be moved to a Raspberry Pi with two TNC-Pis connected to it.
The setup is currently in testing using a different alias and SSIDs at ground level. If the test is successful, then it will be installed at the repeater site.
Due to several suggestions as well as other research, I have decided to postpone installing the aforementioned Pi setup at the repeater site. I will add external drive space with a powered USB HUB as well as put everything inside an appropriate enclosure before installation.
Thanks for all the input.
On Sun, Oct 27, 2013 at 08:49:43PM -0700, Ray Quinn wrote:
Due to several suggestions as well as other research, I have decided to postpone installing the aforementioned Pi setup at the repeater site. I will add external drive space with a powered USB HUB as well as put everything inside an appropriate enclosure before installation.
The latest MCM Electronics catalog offers a rackmount Pi enclosure that has room for a hard drive, power cube, etc. I'm planning on ordering one. - Brian
Brian, is there room for more than one pi in that enclosure? I'd like to find a rackmount enclosure that will take 4 or more pi's... On 13-10-28 03:11 AM, Brian Kantor wrote
The latest MCM Electronics catalog offers a rackmount Pi enclosure that has room for a hard drive, power cube, etc. I'm planning on ordering one.
- Brian
44Net mailing list 44Net@hamradio.ucsd.edu http://hamradio.ucsd.edu/mailman/listinfo/44net http://www.ampr.org/donate.html
It's hard to tell from the small picture in the catalog but it looks like it'll hold at least two Pis. - Brian
On Mon, Oct 28, 2013 at 03:33:19AM -0300, jj wrote:
Brian, is there room for more than one pi in that enclosure? I'd like to find a rackmount enclosure that will take 4 or more pi's...
On Sun, 27 Oct 2013, Brian Kantor wrote:
The latest MCM Electronics catalog offers a rackmount Pi enclosure that has room for a hard drive, power cube, etc. I'm planning on ordering one.
Is it this?
http://www.mcmelectronics.com/product/555-15552
Antonio Querubin e-mail: tony@lavanauts.org xmpp: antonioquerubin@gmail.com
On Sun, Oct 27, 2013 at 08:34:25PM -1000, Antonio Querubin wrote:
Yes, that's the one. - Brian
On Sun, 27 Oct 2013 20:34:25 -1000 (HST), Antonio Querubin tony@lavanauts.org wrote:
(Please trim inclusions from previous messages) _______________________________________________ On Sun, 27 Oct 2013, Brian Kantor wrote:
The latest MCM Electronics catalog offers a rackmount Pi enclosure that has room for a hard drive, power cube, etc. I'm planning on ordering one.
Is it this?
What a waste of a rack shelf. I suppose you could use the extra space for other devices besides two Pi's but for someone looking to do more with that space they really screwed it up with that uPi cut out on the front face.
Anyone with a little sheet metal experience could produce that shelf for $5 worth of sheet aluminum and a bending brake.
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Antonio Querubin -
Bill Vodall -
Brian Kantor -
Brian Rogers -
Geoff Joy -
jj -
K7VE - John -
Kutche, Jerry (Mitchell) USA -
Michael E. Fox - N6MEF -
Ray Quinn -
sp2lob＠tlen.pl