[App_rpt-users] RPi Memory Usage

Jeremy Utley jerutley at gmail.com
Mon Sep 4 23:14:34 EDT 2017


By allowing unpartitioned space on an SD card, you allow the system to use that as "replacement" space when a segment of an SD card can no longer be used.  A similar process is used for SSD drives, and is termed "overprovisioning".  In my company's datacenter, we actually use some special hdparm commands to mark about 20% of an SSD's storage space as not being able to be partitioned - allowing for this space to be used in this manner.

Jeremy, NQ0M

-----Original Message-----
From: App_rpt-users [mailto:app_rpt-users-bounces at lists.allstarlink.org] On Behalf Of Bob
Sent: Monday, September 4, 2017 11:03 AM
To: 'Users of Asterisk app_rpt' <app_rpt-users at lists.allstarlink.org>
Subject: Re: [App_rpt-users] RPi Memory Usage

Thanks Jeremy for the pointer. I'd also like to understand what it is about leaving some unpartitioned space that will help the longevity of an SD card.
It is my understanding the write cycles are a function of write cycles, not space... been wrong before, and willing to learn something new.

Thanks,
Bob


-----Original Message-----
From: App_rpt-users [mailto:app_rpt-users-bounces at lists.allstarlink.org] On Behalf Of Jeremy Utley
Sent: Monday, September 04, 2017 6:17 AM
To: 'Users of Asterisk app_rpt'
Subject: Re: [App_rpt-users] RPi Memory Usage

Sure it's possible.  Can't remember if it inclues the raspi-config tool, but if not, you can run fdisk, change the partition size to use the entire sd card, reboot, then run resize2fs.  However, this isn't always advised, as leaving some unpartitioned space will help the longevity of a SD card.

Jeremy, NQ0M

-----Original Message-----
From: App_rpt-users [mailto:app_rpt-users-bounces at lists.allstarlink.org] On Behalf Of Bob
Sent: Sunday, September 3, 2017 9:17 PM
To: 'Users of Asterisk app_rpt' <app_rpt-users at lists.allstarlink.org>
Subject: [App_rpt-users] RPi Memory Usage

Is it possible to use the entire MicroSD memory space in the RPi load? It appears I'm only using about 6 GB of 32GB, and I'm not finding fs_resize.

Thanks,
Bob

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