[Sony Cross-Device General] ernieg92:
Thank you both for looking into this. I am quite perplexed at some of the output. Especially the difference between directory listings of storage. I was previously familiar with the need to modify /system/etc/permissions/platform.xml and had already done that; I've included relevant sections of the file just FYI.

So, here's the output that you requested.

External SD card:

shell@SGP311:/ $ ls -la $EXTERNAL_STORAGE/
drwxrwx--- root sdcard_r 2015-07-26 01:53 .HhTjqSRo6dybqDAV2ImUSREmnZU=
drwxrwx--- root sdcard_r 2015-07-26 18:24 .eCtcQjbu1dgnvtFnvnr6yepTp1M=
drwxrwx--- root sdcard_r 2015-07-27 00:02 .estrongs
-rw-rw---- root sdcard_r 835945 2015-07-26 02:05 .tempLockScreenWallpaper
drwxrwx--- root sdcard_r 2015-04-08 04:43 Alarms
drwxrwx--x root sdcard_r 2015-04-08 04:43 Android
drwxrwx--- root sdcard_r 2015-07-26 22:49 Books
drwxrwx--- root sdcard_r 2015-07-25 03:01 DCIM
drwxrwx--- root sdcard_r 2015-07-26 02:12 DevexpertNET
drwxrwx--- root sdcard_r 2015-07-26 23:31 Download
drwxrwx--- root sdcard_r 2015-07-25 02:07 MEGA
drwxrwx--- root sdcard_r 2015-04-08 04:43 Movies
drwxrwx--- root sdcard_r 2015-07-25 00:51 Music
drwxrwx--- root sdcard_r 2015-04-08 04:43 Notifications
drwxrwx--- root sdcard_r 2015-04-08 04:43 Pictures
drwxrwx--- root sdcard_r 2015-04-08 04:43 Podcasts
drwxrwx--- root sdcard_r 2015-04-08 04:43 Ringtones
lstat '/storage/emulated/legacy//TWRP' failed: Permission denied
drwxrwx--- root sdcard_r 2015-07-27 01:41 TitaniumBackup
drwxrwx--- root sdcard_r 2015-07-26 22:47 WD My Cloud
drwxrwx--- root sdcard_r 2015-07-25 00:30 airdroid
drwxrwx--- root sdcard_r 2015-07-25 03:38 backups
lstat '/storage/emulated/legacy//clockworkmod' failed: Permission denied
-rw-rw---- root sdcard_r 145 2015-07-27 11:12 customized-capability.xml
drwxrwx--- root sdcard_r 2015-07-27 00:04 data
-rw-rw---- root sdcard_r 14336 2015-07-27 11:12 default-capability.xml
drwxrwx--- root sdcard_r 2015-07-26 22:49 kindle
drwxrwx--- root sdcard_r 2015-07-24 20:07 media
drwxrwx--- root sdcard_r 2015-07-26 22:46 mysword
-rw-rw---- root sdcard_r 16638 2015-07-26 22:27 settings-4.k9s
shell@SGP311:/ $

Interesting how that compares to sdcard1.

shell@SGP311:/ $ cd /storage/sdcard1
shell@SGP311:/storage/sdcard1 $ ls -la
drwxrwx--- root sdcard_r 2015-07-24 14:51 .HhTjqSRo6dybqDAV2ImUSREmnZU=
lstat './.android_secure' failed: Permission denied
drwxrwx--x root sdcard_r 2014-08-30 22:52 Android
drwxrwx--- root sdcard_r 2015-06-07 15:23 DCIM
drwxrwx--- root sdcard_r 2015-07-27 00:14 Documents
drwxrwx--- root sdcard_r 2015-06-07 15:23 Download
drwxrwx--- root sdcard_r 2013-08-17 16:57 Media
drwxrwx--- root sdcard_r 2015-07-27 00:11 Misc
drwxrwx--- root sdcard_r 2013-08-17 16:57 Music
drwxrwx--- root sdcard_r 2013-08-17 16:58 OpenVPN
drwxrwx--- root sdcard_r 2015-07-24 14:54 Pictures
drwxrwx--- root sdcard_r 2015-03-05 22:24 Videos
drwxrwx--- root sdcard_r 2015-06-07 15:23 bluetooth
-rwxrwx--- root sdcard_r 0 2015-07-27 11:12 customized-capability.xml
-rwxrwx--- root sdcard_r 0 2015-07-27 11:12 default-capability.xml
drwxrwx--- root sdcard_r 2013-08-18 21:39 downloads
drwxrwx--- root sdcard_r 2015-06-07 15:23 image
-rwxrwx--- root sdcard_r 3036091 2011-04-05 12:37 infosecuritypro201113-dl.pdf
drwxrwx--- root sdcard_r 2015-07-24 17:19 mysword
drwxrwx--- root sdcard_r 2015-07-24 17:19 mysword1
-rwxrwx--- root sdcard_r 5848 2013-12-22 14:07 transcriptTerm.pdf
drwxrwx--- root sdcard_r 2015-06-07 15:23 video
shell@SGP311:/storage/sdcard1 $

Just for reference, here's both as root:

shell@SGP311:/storage/sdcard1 $ su
root@SGP311:/storage/sdcard1 # cd /
root@SGP311:/ # ls -la $EXTERNAL_STORAGE
drwxrwx--- root sdcard_r 2015-07-26 01:53 .HhTjqSRo6dybqDAV2ImUSREmnZU=
drwxrwx--- root sdcard_r 2015-07-26 18:24 .eCtcQjbu1dgnvtFnvnr6yepTp1M=
drwxrwx--- root sdcard_r 2015-07-27 00:02 .estrongs
-rw-rw---- root sdcard_r 835945 2015-07-26 02:05 .tempLockScreenWallpaper
drwxrwx--- root sdcard_r 2015-04-08 04:43 Alarms
drwxrwx--x root sdcard_r 2015-04-08 04:43 Android
drwxrwx--- root sdcard_r 2015-07-26 22:49 Books
drwxrwx--- root sdcard_r 2015-07-25 03:01 DCIM
drwxrwx--- root sdcard_r 2015-07-26 02:12 DevexpertNET
drwxrwx--- root sdcard_r 2015-07-26 23:31 Download
drwxrwx--- root sdcard_r 2015-07-25 02:07 MEGA
drwxrwx--- root sdcard_r 2015-04-08 04:43 Movies
drwxrwx--- root sdcard_r 2015-07-25 00:51 Music
drwxrwx--- root sdcard_r 2015-04-08 04:43 Notifications
drwxrwx--- root sdcard_r 2015-04-08 04:43 Pictures
drwxrwx--- root sdcard_r 2015-04-08 04:43 Podcasts
drwxrwx--- root sdcard_r 2015-04-08 04:43 Ringtones
lstat '/storage/emulated/legacy/TWRP' failed: Permission denied
drwxrwx--- root sdcard_r 2015-07-27 01:41 TitaniumBackup
drwxrwx--- root sdcard_r 2015-07-26 22:47 WD My Cloud
drwxrwx--- root sdcard_r 2015-07-25 00:30 airdroid
drwxrwx--- root sdcard_r 2015-07-25 03:38 backups
lstat '/storage/emulated/legacy/clockworkmod' failed: Permission denied
-rw-rw---- root sdcard_r 145 2015-07-27 11:12 customized-capability.xml
drwxrwx--- root sdcard_r 2015-07-27 00:04 data
-rw-rw---- root sdcard_r 14336 2015-07-27 11:12 default-capability.xml
drwxrwx--- root sdcard_r 2015-07-26 22:49 kindle
drwxrwx--- root sdcard_r 2015-07-24 20:07 media
drwxrwx--- root sdcard_r 2015-07-26 22:46 mysword
-rw-rw---- root sdcard_r 16638 2015-07-26 22:27 settings-4.k9s
root@SGP311:/ # cd /storage/sdcard1
root@SGP311:/storage/sdcard1 # ls -la
drwxrwx--- root sdcard_r 2015-07-24 14:51 .HhTjqSRo6dybqDAV2ImUSREmnZU=
lstat './.android_secure' failed: Permission denied
drwxrwx--x root sdcard_r 2014-08-30 22:52 Android
drwxrwx--- root sdcard_r 2015-06-07 15:23 DCIM
drwxrwx--- root sdcard_r 2015-07-27 00:14 Documents
drwxrwx--- root sdcard_r 2015-06-07 15:23 Download
drwxrwx--- root sdcard_r 2013-08-17 16:57 Media
drwxrwx--- root sdcard_r 2015-07-27 00:11 Misc
drwxrwx--- root sdcard_r 2013-08-17 16:57 Music
drwxrwx--- root sdcard_r 2013-08-17 16:58 OpenVPN
drwxrwx--- root sdcard_r 2015-07-24 14:54 Pictures
drwxrwx--- root sdcard_r 2015-03-05 22:24 Videos
drwxrwx--- root sdcard_r 2015-06-07 15:23 bluetooth
-rwxrwx--- root sdcard_r 0 2015-07-27 11:12 customized-capability.xml
-rwxrwx--- root sdcard_r 0 2015-07-27 11:12 default-capability.xml
drwxrwx--- root sdcard_r 2013-08-18 21:39 downloads
drwxrwx--- root sdcard_r 2015-06-07 15:23 image
-rwxrwx--- root sdcard_r 3036091 2011-04-05 12:37 infosecuritypro201113-dl.pdf
drwxrwx--- root sdcard_r 2015-07-24 17:19 mysword
drwxrwx--- root sdcard_r 2015-07-24 17:19 mysword1
-rwxrwx--- root sdcard_r 5848 2013-12-22 14:07 transcriptTerm.pdf
drwxrwx--- root sdcard_r 2015-06-07 15:23 video
root@SGP311:/storage/sdcard1 #

Internal storage:

shell@SGP311:/ $ ls -la $INTERNAL_STORAGE
drwxr-xr-x root root 1972-02-06 07:33 acct
drwxrwx--- system cache 1972-02-06 07:33 cache
lrwxrwxrwx root root 1969-12-31 18:00 charger -> /sbin/healthd
dr-x------ root root 1972-02-06 07:33 config
-rw-r--r-- root root 18 1969-12-31 18:00 crashtag
lrwxrwxrwx root root 1972-02-06 07:33 d -> /sys/kernel/debug
drwxrwx--x system system 2015-07-26 23:55 data
-rw-r--r-- root root 518 1969-12-31 18:00 default.prop
drwxr-xr-x root root 2015-07-26 23:58 dev
lrwxrwxrwx root root 1972-02-06 07:33 etc -> /system/etc
-rw-r--r-- root root 47853 1969-12-31 18:00 file_contexts
drwxrwx--x system system 1972-02-06 07:33 firmware
-rw-r--r-- root root 475 1969-12-31 18:00 fstab
-rw-r----- root root 1445 1969-12-31 18:00 fstab.qcom
-rwxr-x--- root root 248192 1969-12-31 18:00 init
-rwxr-x--- root root 2614 1969-12-31 18:00 init.class_main.sh
-rwxr-x--- root root 1187 1969-12-31 18:00 init.environ.rc
-rwxr-x--- root root 6758 1969-12-31 18:00 init.qcom.class_core.sh
-rwxr-x--- root root 5604 1969-12-31 18:00 init.qcom.early_boot.sh
-rwxr-x--- root root 23433 1969-12-31 18:00 init.qcom.rc
-rwxr-x--- root root 2088 1969-12-31 18:00 init.qcom.rmnet.sh
-rwxr-x--- root root 3570 1969-12-31 18:00 init.qcom.sh
-rwxr-x--- root root 3107 1969-12-31 18:00 init.qcom.syspart_fixup.sh
-rwxr-x--- root root 22414 1969-12-31 18:00 init.rc
-rwxr-x--- root root 1613 1969-12-31 18:00 init.sony-device.rc
-rwxr-x--- root root 13153 1969-12-31 18:00 init.sony-platform.rc
-rwxr-x--- root root 4181 1969-12-31 18:00 init.sony.rc
-rwxr-x--- root root 8716 1969-12-31 18:00 init.target.rc
-rwxr-x--- root root 1927 1969-12-31 18:00 init.trace.rc
-rwxr-x--- root root 3885 1969-12-31 18:00 init.usb.rc
-rwxr-x--- root root 2498 1969-12-31 18:00 init.usbmode.sh
-rwxr-x--- root root 434 1969-12-31 18:00 init.zygote32.rc
-rw-r--r-- root root 24120 1969-12-31 18:00 logo.rle
drwxr-xr-x root root 1969-12-31 18:00 lta-label
drwxrwxr-x root system 1972-02-06 07:33 mnt
dr-xr-xr-x root root 1969-12-31 18:00 proc
-rw-r--r-- root root 5379 1969-12-31 18:00 property_contexts
drwxr-xr-x root root 1969-12-31 18:00 res
drwx------ root root 2015-04-08 04:43 root
drwxr-x--- root root 2009-01-02 07:00 sbin
lrwxrwxrwx root root 1972-02-06 07:33 sdcard -> /storage/emulated/legacy
lrwxrwxrwx root root 1972-02-06 07:33 sdcard1 -> /storage/sdcard1
-rw-r--r-- root root 803 1969-12-31 18:00 seapp_contexts
-rw-r--r-- root root 74 1969-12-31 18:00 selinux_version
-rw-r--r-- root root 219825 1969-12-31 18:00 sepolicy
-rw-r--r-- root root 11425 1969-12-31 18:00 service_contexts
drwxr-x--x root sdcard_r 1972-02-06 07:33 storage
dr-xr-xr-x root root 1972-02-06 07:33 sys
drwxr-xr-x root root 2015-07-26 17:39 system
lrwxrwxrwx root root 1972-02-06 07:33 tmp -> /dev/socket
drwxr-xr-x root root 2015-07-26 23:54 tmp-mksh
-rw-r--r-- root root 9979 1969-12-31 18:00 ueventd.qcom.rc
-rw-r--r-- root root 4498 1969-12-31 18:00 ueventd.rc
lrwxrwxrwx root root 1972-02-06 07:33 usbdisk -> /storage/usbdisk
lrwxrwxrwx root root 1972-02-06 07:33 vendor -> /system/vendor
shell@SGP311:/ $ cd /storage/sdcard0
shell@SGP311:/storage/sdcard0 $ ls -la
drwxrwx--- root sdcard_r 2015-07-26 01:53 .HhTjqSRo6dybqDAV2ImUSREmnZU=
drwxrwx--- root sdcard_r 2015-07-26 18:24 .eCtcQjbu1dgnvtFnvnr6yepTp1M=
drwxrwx--- root sdcard_r 2015-07-27 00:02 .estrongs
-rw-rw---- root sdcard_r 835945 2015-07-26 02:05 .tempLockScreenWallpaper
drwxrwx--- root sdcard_r 2015-04-08 04:43 Alarms
drwxrwx--x root sdcard_r 2015-04-08 04:43 Android
drwxrwx--- root sdcard_r 2015-07-26 22:49 Books
drwxrwx--- root sdcard_r 2015-07-25 03:01 DCIM
drwxrwx--- root sdcard_r 2015-07-26 02:12 DevexpertNET
drwxrwx--- root sdcard_r 2015-07-26 23:31 Download
drwxrwx--- root sdcard_r 2015-07-25 02:07 MEGA
drwxrwx--- root sdcard_r 2015-04-08 04:43 Movies
drwxrwx--- root sdcard_r 2015-07-25 00:51 Music
drwxrwx--- root sdcard_r 2015-04-08 04:43 Notifications
drwxrwx--- root sdcard_r 2015-04-08 04:43 Pictures
drwxrwx--- root sdcard_r 2015-04-08 04:43 Podcasts
drwxrwx--- root sdcard_r 2015-04-08 04:43 Ringtones
lstat './TWRP' failed: Permission denied
drwxrwx--- root sdcard_r 2015-07-27 01:41 TitaniumBackup
drwxrwx--- root sdcard_r 2015-07-26 22:47 WD My Cloud
drwxrwx--- root sdcard_r 2015-07-25 00:30 airdroid
drwxrwx--- root sdcard_r 2015-07-25 03:38 backups
lstat './clockworkmod' failed: Permission denied
-rw-rw---- root sdcard_r 145 2015-07-27 11:12 customized-capability.xml
drwxrwx--- root sdcard_r 2015-07-27 00:04 data
-rw-rw---- root sdcard_r 14336 2015-07-27 11:12 default-capability.xml
drwxrwx--- root sdcard_r 2015-07-26 22:49 kindle
drwxrwx--- root sdcard_r 2015-07-24 20:07 media
drwxrwx--- root sdcard_r 2015-07-26 22:46 mysword
-rw-rw---- root sdcard_r 16638 2015-07-26 22:27 settings-4.k9s
shell@SGP311:/storage/sdcard0 $

As root (again, different outputs):

root@SGP311:/ # ls -la $INTERNAL_STORAGE
drwxr-xr-x root root 1972-02-06 07:33 acct
drwxrwx--- system cache 1972-02-06 07:33 cache
lrwxrwxrwx root root 1969-12-31 18:00 charger -> /sbin/healthd
dr-x------ root root 1972-02-06 07:33 config
-rw-r--r-- root root 18 1969-12-31 18:00 crashtag
lrwxrwxrwx root root 1972-02-06 07:33 d -> /sys/kernel/debug
drwxrwx--x system system 2015-07-26 23:55 data
-rw-r--r-- root root 518 1969-12-31 18:00 default.prop
drwxr-xr-x root root 2015-07-26 23:58 dev
lrwxrwxrwx root root 1972-02-06 07:33 etc -> /system/etc
-rw-r--r-- root root 47853 1969-12-31 18:00 file_contexts
drwxrwx--x system system 1972-02-06 07:33 firmware
-rw-r--r-- root root 475 1969-12-31 18:00 fstab
-rw-r----- root root 1445 1969-12-31 18:00 fstab.qcom
-rwxr-x--- root root 248192 1969-12-31 18:00 init
-rwxr-x--- root root 2614 1969-12-31 18:00 init.class_main.sh
-rwxr-x--- root root 1187 1969-12-31 18:00 init.environ.rc
-rwxr-x--- root root 6758 1969-12-31 18:00 init.qcom.class_core.sh
-rwxr-x--- root root 5604 1969-12-31 18:00 init.qcom.early_boot.sh
-rwxr-x--- root root 23433 1969-12-31 18:00 init.qcom.rc
-rwxr-x--- root root 2088 1969-12-31 18:00 init.qcom.rmnet.sh
-rwxr-x--- root root 3570 1969-12-31 18:00 init.qcom.sh
-rwxr-x--- root root 3107 1969-12-31 18:00 init.qcom.syspart_fixup.sh
-rwxr-x--- root root 22414 1969-12-31 18:00 init.rc
-rwxr-x--- root root 1613 1969-12-31 18:00 init.sony-device.rc
-rwxr-x--- root root 13153 1969-12-31 18:00 init.sony-platform.rc
-rwxr-x--- root root 4181 1969-12-31 18:00 init.sony.rc
-rwxr-x--- root root 8716 1969-12-31 18:00 init.target.rc
-rwxr-x--- root root 1927 1969-12-31 18:00 init.trace.rc
-rwxr-x--- root root 3885 1969-12-31 18:00 init.usb.rc
-rwxr-x--- root root 2498 1969-12-31 18:00 init.usbmode.sh
-rwxr-x--- root root 434 1969-12-31 18:00 init.zygote32.rc
-rw-r--r-- root root 24120 1969-12-31 18:00 logo.rle
drwxr-xr-x root root 1969-12-31 18:00 lta-label
drwxrwxr-x root system 1972-02-06 07:33 mnt
dr-xr-xr-x root root 1969-12-31 18:00 proc
-rw-r--r-- root root 5379 1969-12-31 18:00 property_contexts
drwxr-xr-x root root 1969-12-31 18:00 res
drwx------ root root 2015-04-08 04:43 root
drwxr-x--- root root 2009-01-02 07:00 sbin
lrwxrwxrwx root root 1972-02-06 07:33 sdcard -> /storage/emulated/legacy
lrwxrwxrwx root root 1972-02-06 07:33 sdcard1 -> /storage/sdcard1
-rw-r--r-- root root 803 1969-12-31 18:00 seapp_contexts
-rw-r--r-- root root 74 1969-12-31 18:00 selinux_version
-rw-r--r-- root root 219825 1969-12-31 18:00 sepolicy
-rw-r--r-- root root 11425 1969-12-31 18:00 service_contexts
drwxr-x--x root sdcard_r 1972-02-06 07:33 storage
dr-xr-xr-x root root 1972-02-06 07:33 sys
drwxr-xr-x root root 2015-07-26 17:39 system
lrwxrwxrwx root root 1972-02-06 07:33 tmp -> /dev/socket
drwxr-xr-x root root 2015-07-26 23:54 tmp-mksh
-rw-r--r-- root root 9979 1969-12-31 18:00 ueventd.qcom.rc
-rw-r--r-- root root 4498 1969-12-31 18:00 ueventd.rc
lrwxrwxrwx root root 1972-02-06 07:33 usbdisk -> /storage/usbdisk
lrwxrwxrwx root root 1972-02-06 07:33 vendor -> /system/vendor
root@SGP311:/ # cd /storage/sdcard0
root@SGP311:/storage/sdcard0 # ls -la
drwxrwx--- root sdcard_r 2015-07-26 01:53 .HhTjqSRo6dybqDAV2ImUSREmnZU=
drwxrwx--- root sdcard_r 2015-07-26 18:24 .eCtcQjbu1dgnvtFnvnr6yepTp1M=
drwxrwx--- root sdcard_r 2015-07-27 00:02 .estrongs
-rw-rw---- root sdcard_r 835945 2015-07-26 02:05 .tempLockScreenWallpaper
drwxrwx--- root sdcard_r 2015-04-08 04:43 Alarms
drwxrwx--x root sdcard_r 2015-04-08 04:43 Android
drwxrwx--- root sdcard_r 2015-07-26 22:49 Books
drwxrwx--- root sdcard_r 2015-07-25 03:01 DCIM
drwxrwx--- root sdcard_r 2015-07-26 02:12 DevexpertNET
drwxrwx--- root sdcard_r 2015-07-26 23:31 Download
drwxrwx--- root sdcard_r 2015-07-25 02:07 MEGA
drwxrwx--- root sdcard_r 2015-04-08 04:43 Movies
drwxrwx--- root sdcard_r 2015-07-25 00:51 Music
drwxrwx--- root sdcard_r 2015-04-08 04:43 Notifications
drwxrwx--- root sdcard_r 2015-04-08 04:43 Pictures
drwxrwx--- root sdcard_r 2015-04-08 04:43 Podcasts
drwxrwx--- root sdcard_r 2015-04-08 04:43 Ringtones
lstat './TWRP' failed: Permission denied
drwxrwx--- root sdcard_r 2015-07-27 01:41 TitaniumBackup
drwxrwx--- root sdcard_r 2015-07-26 22:47 WD My Cloud
drwxrwx--- root sdcard_r 2015-07-25 00:30 airdroid
drwxrwx--- root sdcard_r 2015-07-25 03:38 backups
lstat './clockworkmod' failed: Permission denied
-rw-rw---- root sdcard_r 145 2015-07-27 11:12 customized-capability.xml
drwxrwx--- root sdcard_r 2015-07-27 00:04 data
-rw-rw---- root sdcard_r 14336 2015-07-27 11:12 default-capability.xml
drwxrwx--- root sdcard_r 2015-07-26 22:49 kindle
drwxrwx--- root sdcard_r 2015-07-24 20:07 media
drwxrwx--- root sdcard_r 2015-07-26 22:46 mysword
-rw-rw---- root sdcard_r 16638 2015-07-26 22:27 settings-4.k9s
root@SGP311:/storage/sdcard0 #

Here is the search for XZDR directory and mount command that McBane87 requested:

root@SGP311:/storage/sdcard0 # cd ../sdcard1
root@SGP311:/storage/sdcard1 # ls -la XZ*
XZ*: No such file or directory
1|root@SGP311:/storage/sdcard1 # mount
rootfs / rootfs ro,seclabel,relatime 0 0
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0
none /dev/cpuctl cgroup rw,relatime,cpu 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
/sys/kernel/debug /sys/kernel/debug debugfs rw,relatime 0 0
none /sys/fs/cgroup tmpfs rw,seclabel,relatime,mode=750,gid=1000 0 0
none /acct cgroup rw,relatime,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
/dev/block/platform/msm_sdcc.1/by-name/system /system ext4 ro,seclabel,relatime,data=ordered 0 0
/dev/block/loop0 /system/odex squashfs ro,seclabel,relatime 0 0
/dev/block/platform/msm_sdcc.1/by-name/userdata /data ext4 rw,seclabel,nosuid,nodev,relatime,discard,noauto_da_alloc,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/apps_log /mnt/idd ext4 rw,seclabel,nosuid,nodev,noexec,noatime,discard,nobarrier,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/cache /cache ext4 rw,seclabel,nosuid,nodev,noatime,discard,data=ordered 0 0
/dev/block/platform/msm_sdcc.1/by-name/LTALabel /lta-label ext4 ro,context=u:object_r:lta_label:s0,nosuid,nodev,noexec,noatime,data=ordered 0 0
tmpfs /mnt/qcks tmpfs rw,seclabel,relatime,mode=770,uid=1000,gid=1000 0 0
/dev/fuse /mnt/shell/emulated fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other,allow_utime_grp 0 0
tmpfs /storage/emulated tmpfs rw,seclabel,nosuid,nodev,relatime,mode=050,gid=1028 0 0
/dev/block/vold/179:33 /mnt/media_rw/sdcard1 texfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,umask=0007,allow_utime=0020,nls=utf8,min_prealloc_size=64k,max_prealloc_size=60874M,readahead=4M,fail_safe,discard,errors=continue 0 0
/dev/block/vold/179:33 /mnt/secure/asec texfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,umask=0007,allow_utime=0020,nls=utf8,min_prealloc_size=64k,max_prealloc_size=60874M,readahead=4M,fail_safe,discard,errors=continue 0 0
/dev/fuse /storage/sdcard1 fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other,allow_utime_grp 0 0
/dev/fuse /storage/emulated/0 fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other,allow_utime_grp 0 0
/dev/fuse /storage/emulated/0/Android/obb fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other,allow_utime_grp 0 0
/dev/fuse /storage/emulated/legacy fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other,allow_utime_grp 0 0
/dev/fuse /storage/emulated/legacy/Android/obb fuse rw,nosuid,nodev,noexec,relatime,user_id=1023,group_id=1023,default_permissions,allow_other,allow_utime_grp 0 0
root@SGP311:/storage/sdcard1 #

Permissions file platform.xml snippet:

<permission name="android.permission.READ_EXTERNAL_STORAGE" >
<group gid="sdcard_r" />
</permission>

<permission name="android.permission.WRITE_EXTERNAL_STORAGE" >
<group gid="sdcard_r" />
<group gid="sdcard_rw" />
<group gid="media_rw" />
</permission>

<permission name="android.permission.ACCESS_ALL_EXTERNAL_STORAGE" >
<group gid="sdcard_r" />
<group gid="sdcard_rw" />
<group gid="sdcard_all" />
</permission>

<permission name="android.permission.WRITE_MEDIA_STORAGE" >
<group gid="media_rw" />
</permission>

Sorry for such a loooong reply! That's probably WAY more information than you needed, but I tried to make sure I covered everything. I'm wondering now, do I have something hosed up in my permissions and maybe should start over (re-flash ROM, re-flash XZDR, format sdcard1)? Or maybe I'm putting too much thought into this and it's fine.....although last night I was having a problem writing to the external SD card.

Thanks for your help!