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Does anyone know how I would diagnose a stuttering on a Plex video from a Synology NAS? It only applies to some videos so I think there's a change in how I encoded them, but I'm not sure exactly what parameters I should look for (e.g., if the server can't decode some video format natively and is trying to transcode it, if there's an audio stream transcoding, if the server is doing something else as well, etc). I'm pretty sure it's not a bandwidth issue, but I could check that as well.
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Feb 10, 2022 23:43
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Look at the stats on whatever you're playing the video on - it will tell you if you're hitting CPU limits, running out of RAM etc. It's unlikely to be bandwidth but I had a nightmare playing some content back on an old Raspberry Pi 3 over Wi-Fi because the wireless radio is so incredibly bad on that device.
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Feb 10, 2022 23:47
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School of How posted:I had planned on using motherboard RAID. Is it really that bad? My motherboard is a B550 motherboard that I bought in 2020, so the tech on it should be pretty recent. How do I go about setting up OS RAID on ubuntu? If you're using Ubuntu there is no reason you should run whatever RAID implementation your motherboard has. The RAID1 your motherboard creates might be portable or readable on other systems, it might not. There's absolutely no standardization with that sort of thing. The best option would be ZFS, since it's massively portable across most flavors of Linux as well as BSD, and it's also more reliable than other solutions. Especially if your use case is just a mirrored pair of disks.
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Feb 10, 2022 23:50
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Thanks Ants posted:Look at the stats on whatever you're playing the video on - it will tell you if you're hitting CPU limits, running out of RAM etc. Where do you see that? It happens with the Mac Plex app and the AppleTV Plex app, but the file itself is okay, even when opened as a file over the network in VLC.
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Feb 10, 2022 23:53
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This was in Kodi using their terrible SMB client so I was probably asking for the performance issues Edit: Oh, you were asking where to see the stats. I think you're probably SOL for the Apple TV app. I really doubt you're having issues with your Mac not being quick enough either, so I would look at whether you're transcoding that video. Synology are really good at putting pretty anaemic hardware in their NAS boxes considering the price, so unless you specifically have one designed to transcode (and Plex can make use of that), you're probably running into the limits of what a six year old Atom is capable of. Thanks Ants fucked around with this message at 23:57 on Feb 10, 2022 |
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Feb 10, 2022 23:55
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PRADA SLUT posted:Where do you see that? It happens with the Mac Plex app and the AppleTV Plex app, but the file itself is okay, even when opened as a file over the network in VLC. Check out the dashboard on your Plex server when streaming.
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Feb 11, 2022 00:05
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withoutclass posted:Check out the dashboard on your Plex server when streaming. On the dashboard, it's listed as: Video: 4K (HEVC Main 10 HDR) Direct Play Audio: English (AC3 5.1) Direct Play The little box claims 31Mbps and I normally see about that much, but sometimes the bandwidth spikes to 350Mbps. That shouldn't matter, since I'm wired on a Gigabit connection, and I get 940Mbps to the internet (if that matters). Is it like a disk speed thing? I have two 10TB 7200RPM IronWolfs. DS218+ 2-core 2GHZ INTEL Celeron J3355 10 GB RAM e: bandwidth spikes don't correlate with lag / frame drops. They seem to happen independently (or not) of the video. PRADA SLUT fucked around with this message at 01:04 on Feb 11, 2022 |
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Feb 11, 2022 00:56
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School of How posted:I had planned on using motherboard RAID. Is it really that bad? My motherboard is a B550 motherboard that I bought in 2020, so the tech on it should be pretty recent. How do I go about setting up OS RAID on ubuntu? It's not terribly bad, there's just zero advantage to it other than easy setup. Meanwhile it does have some downsides: lack of portability, lack of good feedback and error logging. For example, lets say your mobo dies. You can move the drives to a new mobo, but the process for restoring a functional mirror is to pick one drive as the "good" one, turn on mirroring, and wait for the mobo to rebuild the raid by getting everything from the "good" drive. So for one full drive write you have to just guess "does one of your drives actually have errors on it?" Here are instructions for creating a ZFS mirror set on ubuntu. You should probably use that.
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Feb 11, 2022 01:03
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The more I think about it, I think what I shoiuld go with is one of these: https://www.newegg.com/asustor-as1104t/p/N82E16822225067 I'd rather not have to always be loving with the command line to get my files working,. I'd rather just have a device I put drives into. and it just sits there and work with little hassle on my part. Does anybody know of a model/brand NAS enclosure that stands out as the best? I already have a nVidia Sheid, so I don't need video streaming capabilities. I just need something that will just serve files. It would be nice if there was a sleep feature, since I'm only going to be using the server a few hours a day. I'd prefer it to spin off the drives when they are not in use, so it isn't burning electricity when it's not in use. School of How fucked around with this message at 02:45 on Feb 11, 2022 |
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Feb 11, 2022 02:42
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School of How posted:The more I think about it, I think what I shoiuld go with is one of these: https://www.newegg.com/asustor-as1104t/p/N82E16822225067 Yeah since you said you were running a linux machine I figured were comfortable there. If not, and you have the extra money, just get a NAS box. Plug in drives and forget all this poo poo. That asus one you linked is very cheap for a 4-bay NAS: that's because it's got 4 drive bays and no frills. Cheap ARM processor, 1GB ram, etc. If all you care about is the basic file storage it's just fine. If you want to do things like run a plex server on your NAS-box or other multipurpose things you should aim to spend more, or look at 2-bay devices like the synology DS220+ that are about the same price. Any commercial NAS box will have the ability to automatically spin down the disks.
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Feb 11, 2022 03:33
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School of How posted:edit: just found a guide: https://kifarunix.com/setup-software-raid-on-ubuntu-20-04/, holy crap that looks like too much work, and will likely break at some point in the future. This looks like 4 commands, only half of which are specific to RAID (and one of them is just installing the RAID software)?
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Feb 11, 2022 07:21
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i would not use the old md/dm mirroring in linux when zfs is available, even if Torvalds still says "don't use zfs" because of the licensing. it's just so much easier to set up stuff like snapshots on zfs, you can even make them show up as previous versions on windows clients: https://github.com/zfsonlinux/zfs-auto-snapshot/wiki/Samba
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Feb 11, 2022 08:27
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Agreed, it's 2022, don't use mdraid. Even if you never snapshot or anything like that, it's more reliable. On a running Ubuntu server you're only looking at three commands to get your ZFS array up, and the second one is just to get the paths to your specific drives. code:code:
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Feb 11, 2022 15:59
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PRADA SLUT posted:Where do you see that? It happens with the Mac Plex app and the AppleTV Plex app, but the file itself is okay, even when opened as a file over the network in VLC. AppleTV is known to be really lovely with Plex. AppleTV doesn't even support TrueHD/Atmos audio so there's always AppleTV users complaining that they don't hear audio in Plex.
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Feb 11, 2022 16:34
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Chumbawumba4ever97 posted:AppleTV is known to be really lovely with Plex. AppleTV doesn't even support TrueHD/Atmos audio so there's always AppleTV users complaining that they don't hear audio in Plex. That’s... untrue? In fact, ATV can flawlessly match color space and frame rate. Sure, it transodes TrueHD to 7.1 PCM, but that still works fine for anyone without Atmos height channels.
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Feb 11, 2022 17:03
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I've been really happy with my ATVs and plex for years and years. I do use Infuse (https://firecore.com/infuse) on my AppleTV 4k since super high bitrate 4k content can sometimes not play right in the Plex app. e: quoting for visibility PRADA SLUT posted:Does anyone know how I would diagnose a stuttering on a Plex video from a Synology NAS? This is what mine did when I say "not play right" BlackMK4 fucked around with this message at 21:56 on Feb 11, 2022 |
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Feb 11, 2022 17:18
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Is there a way I can tell if this is a physical problem with a drive vs bad cable or something?code:code:
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Feb 11, 2022 17:59
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CopperHound posted:Is there a way I can tell if this is a physical problem with a drive vs bad cable or something? 195 Hardware_ECC_Recovered 0x001a 004 001 000 Old_age Always - 65897984 Suggests that the drive itself might be having issues, since that's a number that would be independent of any cabling issues.
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Feb 11, 2022 18:13
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CopperHound posted:Is there a way I can tell if this is a physical problem with a drive vs bad cable or something? Of all the SMART stuff that backblaze thinks are relevant to drive death, you have zeros in all of them. The only non-zero thing that might be of note is 189 high fly writes, and that's only really bad if you get a cluster of them. So if those 16 high fly events were spread out over the whole drive's operating life, it's probably fine. Seagate's definitely not gonna replace it. I'd say drive is probably not the problem, so maybe replace the cable, mark it clear, and see if it stops producing errors? Or pull the drive and give it a full test on a separate machine, if you want to be sure? Methylethylaldehyde posted:195 Hardware_ECC_Recovered 0x001a 004 001 000 Old_age Always - 65897984 Hardware_ECC_Recovered is not an incrementing number of events, it's the time between events. High is good.
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Feb 11, 2022 18:31
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Klyith posted:I'd say drive is probably not the problem, so maybe replace the cable, mark it clear, and see if it stops producing errors? Or pull the drive and give it a full test on a separate machine, if you want to be sure? For now, if there isn't anything that looks like a definite hardware failure, I'll swap bays and see if it follows the drive before buying another sas to 4x sata cable. CopperHound fucked around with this message at 19:17 on Feb 11, 2022 |
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Feb 11, 2022 18:43
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This is explicitly marked as a pre-fail attribute:pre:Seek_Error_Rate 0x000f 088 060 045 Pre-fail Always - 564858735 pre:Raw_Read_Error_Rate 0x000f 078 064 044 Pre-fail Always - 65897984 Methylethylaldehyde posted:195 Hardware_ECC_Recovered 0x001a 004 001 000 Old_age Always - 65897984 CopperHound posted:In my haste I forgot to say what I tried so far. I marked it clear a couple weeks ago and it went through a resilver twice without errors, but they just came back yesterday. EDIT: Doesn't /var/log/messages contain tons of messages from CAM about READs and WRITEs having failed? BlankSystemDaemon fucked around with this message at 18:54 on Feb 11, 2022 |
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Feb 11, 2022 18:51
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BlankSystemDaemon posted:EDIT: Doesn't /var/log/messages contain tons of messages from CAM about READs and WRITEs having failed? code:
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Feb 11, 2022 19:08
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Sir Bobert Fishbone posted:I have what looks on its face to be the dumbest SMART error. This is the smartctl output for a 1TB Gigabyte nvme drive on my Proxmox server, which has begun emailing me every day that the drive is failing. The room that box is in is somewhat chilly, sure, but certainly not as cold as the drive seems to think it is. I migrated my entire VM stack from Proxmox to ESXi free edition this week, and this drive is absolutely failing in weird and wonderful ways. It lasts all of 2-10 minutes after reboot before VMWare decides it's inaccessible and shuts it down. I installed Windows on that box bare-metal just so I could run Gigabyte's special SSD tool, and that tool reports everything as being totally fine, including normal temperature readings. Going to have to call it a loss and move on, I think. Just wish it behaved consistently.
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Feb 11, 2022 19:09
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BlankSystemDaemon posted:This is explicitly marked as a pre-fail attribute: If it is failing I don't think it has anything to do with those counters, which if this is anything to go by actually shows no errors at all since there's nothing past 32 bits in any of those counts. In fact, briefly looking at every seagate drive I was able to find in anything I could SSH to, they're all like that: large values, but since nothing in bits 32-48 are set no actual issues. Or that dude is wrong and every seagate drive is failing at about the same time. So it's probably worth chasing down controller/cable issues at this point still since the smart stuff seems fine.
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Feb 11, 2022 19:09
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ComWalk posted:If it is failing I don't think it has anything to do with those counters, which if this is anything to go by actually shows no errors at all since there's nothing past 32 bits in any of those counts. In fact, briefly looking at every seagate drive I was able to find in anything I could SSH to, they're all like that: large values, but since nothing in bits 32-48 are set no actual issues. Or that dude is wrong and every seagate drive is failing at about the same time. The source for all of these claims come exclusively from this Frank Zabkar, and all around the same time (Early Febuary, 2009) based on references to threads on Usenet that he participated in - so I'm not really sure that they're worth trusting. If Seagate goes out of the way to obfuscate raw information values, then the next best thing we can do is compare it with similar drives in the same array (assuming there are any). There's definitely an issue and I still suspect the drive, irrespective of the S.M.A.R.T attributes - because not only is CAM (part of the storage subsystem) producing the exact errors I'd expect to see when failing to issue WRITE or READ operations on FreeBSD, but ZFS wouldn't be FAULTing the drive if that wasn't happening. A cable coming lose after running for about 100 days isn't that likely, unless there's been a recent maintenance window.
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Feb 11, 2022 19:34
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Regarding Seagate's SMART data. Things like error rates and what not are a combination of two values, one 16bit and another 32bit, leading to some 48bit value that reads insane but may just mean nothing. Those weird rear end seek and read error rates also irritated me, after installing my disks. I think the upper 16bit count the actual errors, so I guess if the value is below 2 or 4 billion (gently caress if I know whether they're signed or not), you're fine. --e:f,b
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Feb 11, 2022 19:34
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Sir Bobert Fishbone posted:I migrated my entire VM stack from Proxmox to ESXi free edition this week, and this drive is absolutely failing in weird and wonderful ways. It lasts all of 2-10 minutes after reboot before VMWare decides it's inaccessible and shuts it down. I installed Windows on that box bare-metal just so I could run Gigabyte's special SSD tool, and that tool reports everything as being totally fine, including normal temperature readings. Going to have to call it a loss and move on, I think. Just wish it behaved consistently. What version of ESXi are you trying? If you just did it, probably unlikely but VMware pushed out a patch last year to vsphere 7 that they actually had to pull and tell people to revert, iirc it had drive killing problems. If you are on 7.0 U3 A or B, then you need to patch to C.
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Feb 11, 2022 20:28
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BlankSystemDaemon posted:I never look at the normalized values from smartmontools, because they're never the same across manufacturers. Raw values are explicitly for the manufacturer to store information in whichever way they want to. Storing two values in 48 bits isn't obfuscation, it's efficient use of a ancient standard that has very limited space. Seeing massive numbers on various raw values in smart is super duper common, I don't know how this can be new information to anyone who knows hard drives. There are decades of Qs on stackexchange and slashdot of people asking if this means their drive is dying. If you always look at raw values and never reflect on how WORST is well above THRESH, and how the treating that as a straight value would mean a 4:1 ratio of errors versus blocks read in the drive's entire lifetime, you must replace a lot of drives!
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Feb 11, 2022 20:40
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BlankSystemDaemon posted:I never look at the normalized values from smartmontools, because they're never the same across manufacturers. Yeah I was only looking at the raw value there which doesn't seem to be indicating errors at all. I get that random dude isn't super confidence inspiring but for what it's worth that method does result in matching normalized values on the first six drives I tested, so it seems really likely that the 16/32 bit values are what he suggests they are, and thus that the drive itself thinks that it is fine. Recent drives too, 2018-2021 manufacture dates. I don't trust drives to recognize that they're failing or anything but it doesn't look like there's a smoking gun there is all. I'd be less worried about a cable coming loose and more an SFF-8087 cable that got damaged during installation and it just took days/weeks/months of vibration to finally have it come to a head. Some of them are annoyingly fragile. Plus with that controller log showing da1 also giving the controller issues I'd be even more skeptical of the controller/cable. Two drives falling out within seconds of each other seems like there are bigger problems to chase down than just a single drive. fake edit: actually, looking closer, those CAM errors were from the WDC drive? that does not look like a happy system ComWalk fucked around with this message at 20:50 on Feb 11, 2022 |
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Feb 11, 2022 20:41
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phosdex posted:What version of ESXi are you trying? If you just did it, probably unlikely but VMware pushed out a patch last year to vsphere 7 that they actually had to pull and tell people to revert, iirc it had drive killing problems. If you are on 7.0 U3 A or B, then you need to patch to C. I tried 7.0 U3C, as well as the most recent 6.7. I'll have to look into that failed patch, though, because I was running ESXi late last year on this hardware. Thanks for the heads up.
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Feb 11, 2022 20:48
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ComWalk posted:fake edit: actually, looking closer, those CAM errors were from the WDC drive? that does not look like a happy system
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Feb 11, 2022 21:21
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IOwnCalculus posted:Agreed, it's 2022, don't use mdraid. Even if you never snapshot or anything like that, it's more reliable. Is it also possible to retrofit my current OS drive into a bootable mirrored zpool? I went with mdadm because I read doing that with zfs would be hell. (this is roughly the guide I followed: https://feeding.cloud.geek.nz/posts/setting-up-raid-on-existing/)
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Feb 11, 2022 21:37
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So I’ve moved countries, and have set up a temporary Plex/file server on an old computer running Windows I had kicking around my parent’s place while I wait for my actual server to get here via the slow boat from China (almost, but not literally). I have an NTFS formatted 14TB drive I brought with me almost full, with a view to having something to watch during quarantine and then to build an ad-hoc server. Everything was going fine until I noticed writes/copies by Sonarr/Radarr from the 256GB SSD OS drive to the 14TB drive were failing. Reading from the data already on the drive is fine. In windows, the partition (all one partition, GPT, basic) shows up fine in computer management, but various “partition” programs show the space as raw or unpartitioned. I’m assuming the partition table is messed in a non-obvious way. Is there a piece of software I’m overlooking that will let me non-destructively rebuild the partition table? I don’t have another 14TB drive (here - I have like 40TB in my server which will be here in two months) to copy all this data to, and I’d rather continue being able to watch the movies/tv I already have on there. Obviously the easy way is duplicate the data, reformat the drive, but I just don’t have that capability right here right now.
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Feb 12, 2022 00:36
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SuperiorColliculus posted:So I’ve moved countries, and have set up a temporary Plex/file server on an old computer running Windows I had kicking around my parent’s place while I wait for my actual server to get here via the slow boat from China (almost, but not literally).  Do all writes to the 15TB drive fail? Like if you copy a small 10-20KB file over in explorer, does that work?How old is the windows PC that you put this drive into? I'm wondering if it's old enough that you've got compatibility problems with a 4k native drive or something like that. If the PC hardware is really old, that maybe could be the problem? This is a bit of a stretch, I'd have thought a problem like that would result in the controller just not being able to recognize the drive... But if this is at all possible I would avoid doing anything to the drive in that PC, especially writes to the GPT area. Any writes could just be barfing bad data on it. Aside from that, have you already done a full chkdsk /R scan? On a 14TB drive that's gonna take a while, but it's the most non-destructive starting point. Theoretically resizing a NFTS partition in windows drive management should be non-destructive. That would re-write the relevant GPT info. Feels like playing with fire in this case. A linux tool gdisk can recover GPT by copying the backup GPT from the end of the drive to the "normal" beginning-of-drive table. But I don't think this makes sense as a solution -- modern partition programs should look in both places as well.
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Feb 12, 2022 01:37
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CopperHound posted:Okay, I'm dumb. All those errors are from me swapping drive bays. I thought my logs were on UTC instead of local time. I have no cam messages from past several days other than that. code:
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Feb 12, 2022 03:32
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CopperHound posted:also, the truenas core web terminal sucks for copying text. For copying text is the least of it. I can't imagine trying to use that for anything. Get a decent ssh client.
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Feb 12, 2022 03:38
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Motronic posted:Get a decent ssh client. just type ssh on the windows command line, no need to get anything in win10 & 11 MS ported the whole thing natively
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Feb 12, 2022 03:48
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Klyith posted:just type ssh on the windows command line, no need to get anything in win10 & 11 Wait what? <hang on> What the hell? I'm still using a 1990s version of Reflection because that's what I'm used to. I had no idea that was actually on the CLI. (will continue to use my old man client....and to be fair I don't use windows all the much other than on the laptop I happen to be on right now)
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Feb 12, 2022 03:52
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Also if you get windows terminal you can put SSH sessions directly on the tab-launcher thing. poo poo's tight. (As you can see I only have a Pi and a router at home, anyone with home servers and NAS stuff should definitely do this) Motronic posted:(will continue to use my old man client....and to be fair I don't use windows all the much other than on the laptop I happen to be on right now) Between WSL2 and new poo poo like terminal, MS is really taking the "embrace and extend" thing to a whole new level... and that level is "what if windows, but also linux?" I don't know if that will work out on the "extinguish" front for them, 'cause for me it's done more to make me want to move to linux full time.
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Feb 12, 2022 04:12
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Klyith posted:Also if you get windows terminal you can put SSH sessions directly on the tab-launcher thing. poo poo's tight. Holy crap, it's an iTerm rip off. I love it. Thank you.
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Feb 12, 2022 04:14
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