swap not listed? [solved]
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Tested with a virtual machine, "/dev/mirror/swap" was created by the 2.6CE installer when selecting "Mirror swap" option
Is it using GEOM Mirror for the swap and ZFS Mirror for the rest of the data? -
@mvikman said in swap not listed?:
Tested with a virtual machine, "/dev/mirror/swap" was created by the 2.6CE installer when selecting "Mirror swap" option
Is it using GEOM Mirror for the swap and ZFS Mirror for the rest of the data?It must be, since it's showing in /dev/mirror. That's all a part of the BSD installer and not our code though IIRC.
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What makes mirroring swap a bad idea, other than possible writes to swap are doubled/slower?
Does it really matter if swap is not used at all in normal situations (system has enough RAM not to swap)? -
@mvikman said in swap not listed?:
What makes mirroring swap a bad idea, other than possible writes to swap are doubled/slower?
Does it really matter if swap is not used at all in normal situations (system has enough RAM not to swap)?Those two reasons are more than enough to not do it. Swap is already slow enough compared to RAM, making it even slower is going to be a problem if/when the system needs to hit swap.
If your system never hits swap it's not going to matter much (until it does...) but there is no advantage to it either.
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@jimp In the case of Squid Proxy and content acceleration I have a 15 gb swap set up it's almost 70 percent full. Is this not the same thing, as it is considered a swap under the proxy ?
Make sure to upvote
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Well manually edit of fstab to be da0 vs da1, finally got around to a reboot of pfsense and now see swap
I don't really like rebooting my firewall.. Waited for a time when nobody streaming off plex, and wasn't doing anything else, etc.
I will mark as solved, thanks Jim!
edit: just to be complete, swapinfo now shows
[23.01-RELEASE][admin@sg4860.local.lan]/root: swapinfo Device 1K-blocks Used Avail Capacity /dev/da0p2 1048576 0 1048576 0% [23.01-RELEASE][admin@sg4860.local.lan]/root: -
@jonathanlee said in swap not listed? [solved]:
@jimp In the case of Squid Proxy and content acceleration I have a 15 gb swap set up it's almost 70 percent full. Is this not the same thing, as it is considered a swap under the proxy ?
That is unrelated. That is about squid's internal memory vs disk cache. This is about OS RAM usage.
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@johnpoz
I'm having the same issue on my brand new 4100; swap partition exists but is not showing in the widget.I typed in the command: cat /etc/fstab but not sure where to go from here.
gpart show
I'm not sure why it says freebsd-ufs when the disk widget shows zfs...
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@azdeltawye said in swap not listed? [solved]:
I'm having the same issue on my brand new 4100; swap partition exists but is not showing in the widget
See Netgate 4100 disk : my 4100 MAX came with 22.01 pre installed and had a swap partition, but not shown in the GUI dashboard widget.
Had to edit the /etc/fstab/ as mentioned above.This is mine right now :
[23.01-RELEASE][admin@pfSense.brit-hotel-fumel.net]/root: cat /etc/fstab # Device Mountpoint FStype Options Dump Pass# /dev/nvd0p3 none swap sw 0 0NOte ; back then, see other thread, I had a first line :
/dev/msdosfs/EFISYS /boot/efi msdosfs rw,noatime,noauto 0 0Now, it is 't there anymore.
@azdeltawye said in swap not listed? [solved]:
freebsd-ufs when the disk widget shows zfs
Can't tell ...
I did do a complete re install with an fresh "22.05" image from Netgate, last September just to complete my 'crash test formation'. -
The 4100 MAX I have here appears to be OK, it was freshly installed recently with 23.01, though. It's possible there was an issue in the older installer.
I'm curious though if anyone can reproduce that with a fresh 23.01 install.
: cat /etc/fstab # Device Mountpoint FStype Options Dump Pass# /dev/gpt/efiboot0 /boot/efi msdosfs rw 2 2 /dev/nvd0p3 none swap sw 0 0: swapinfo Device 1K-blocks Used Avail Capacity /dev/nvd0p3 1048576 0 1048576 0%: gpart show -p => 40 234441568 nvd0 GPT (112G) 40 532480 nvd0p1 efi (260M) 532520 1024 nvd0p2 freebsd-boot (512K) 533544 984 - free - (492K) 534528 2097152 nvd0p3 freebsd-swap (1.0G) 2631680 231809024 nvd0p4 freebsd-zfs (111G) 234440704 904 - free - (452K) -
@gertjan
Thanks for the link to the applicable thread. I am in the exact same situation.
I will reply there with any updates. -
OK, problem solved.
I did a fresh install of 23.01 on my 4100-MAX and now the SWAP partition is recognized!
Before:
Shell Output - cat /etc/fstab # Device Mountpoint FStype Options Dump Pass# /dev/msdosfs/EFISYS /boot/efi msdosfs rw,noatime,noauto 0 0 /dev/gptid/1fa4f543-c6a2-11ec-93d9-90ec772a1255 none swap sw 0 0 Shell Output - gpart show -p => 3 234441637 nvd0 GPT (112G) 3 409600 nvd0p1 efi (200M) 409603 222504511 nvd0p2 freebsd-ufs (106G) 222914114 11527521 nvd0p3 freebsd-swap (5.5G) 234441635 5 - free - (2.5K)After:
Shell Output - cat /etc/fstab # Device Mountpoint FStype Options Dump Pass# /dev/gpt/efiboot0 /boot/efi msdosfs rw 2 2 /dev/nvd0p3 none swap sw 0 0 Shell Output - gpart show -p => 40 234441568 nvd0 GPT (112G) 40 532480 nvd0p1 efi (260M) 532520 1024 nvd0p2 freebsd-boot (512K) 533544 984 - free - (492K) 534528 16777216 nvd0p3 freebsd-swap (8.0G) 17311744 217128960 nvd0p4 freebsd-zfs (104G) 234440704 904 - free - (452K)
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@jimp does the 2100-Max have an ability to have a swap partition on the 30GB SSD drive? This is after a fresh install of 23.01 from TAC support provided software.
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Not by default. And it would be complex to add it.
The aarch64 installs are created by imaging the target device directly, there is no installer like there is for amd64. The images used there do not have swap.
Steve
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Since you are running from an SSD you could partition the MMC and drop a swap slice on there if you really want swap but I wouldn't recommend doing that long term unless you're just wanting it for crash dumps.
We're considering making it an option to disable swap memory usage while keeping swap for crash dumps but we don't have an option in for that yet.
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G Gertjan referenced this topic on
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@jimp Is there a way to enable swap on the 2100?
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@johnpoz When I ran the gpart show -p:
=> 40 234441568 ada0 GPT (112G)
40 409600 ada0p1 efi (200M)
409640 1024 ada0p2 freebsd-boot (512K)
410664 984 - free - (492K)
411648 2097152 ada0p3 freebsd-swap (1.0G)
2508800 231931904 ada0p4 freebsd-zfs (111G)
234440704 904 - free - (452K)my
Swap file is ada0s3,I went to cat/etc/fstab:
/dev/ada2p3 none swap sw 0 0So is the point at which I can edit fstab and change the ada2p3 to ada0p3? Then reboot pfsense?
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Yes you could just edit he fstab if you have only one drive now and it has a SWAP partition.
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@stephenw10 yes that is the case. I have migrated through several computers and I am thinking the incorrect location for the swap file is a remnant of past configurations - dual boot with windows and separate storage drives pre-zfs to store partition images using third party imaging program. When I clean installed 23 pfsense+? and moved to zfs, I pulled in my confiig file off a USB drive on reboot.
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Worked like a charm - now the swap partition shows up in the System Information widget.
