Lsi hba guide reddit No mention of cache in the 2014 quick installation guide. I’m stuck between going for a traditional LSI HBA or trying out a PCIe-based ASM1166 SATA expander. Come and join us Hello everyone! I am trying to install Centos 8 with /root and /boot (kernel and initramfs) on ZFS. Then upgrading from an AMD fx 8350 to an i5 13600k took me from 28 hours to 11-12 hours. This subreddit has gone Restricted and reference-only as part of a mass I took a quick glance and you should just need an HBA. It is not meant as a replacement for the Hardware Recommendations Guide - it is just a sort of quick reference for popular parts. None the less the card I use is an LSI 6Gbps SAS HBA LSI 9211-8i (=9201-8i) P20 IT Mode. r/selfhosted • I created a library of full-color SVG icons of homelab-related software, products, and brands that I'm using in my network diagrams. 00, Driver: 18. 9. Booted up ESXI 7. Recommeded LSI/OEM HBA (9211-8i/9207-8i) Discussion This subreddit has gone Restricted and reference-only as part of a mass protest against Reddit's recent API changes, which break third-party apps and moderation tools. It looks like the thing usually referred to as a "9200-8i" (which is not a product that LSI ever sold to end customers) is IBM FRU 46C8937 or 68Y7363, which seem to be SAS2008 HBAs like the 9211-8i and friends. This setup has been running for a week with no An LSI 9207-8i card is the way to go, it’s PCIe 3x and will support 8 drives with ease. You can't go wrong with LSI HBA cards. Or check it out in the app stores TOPICS. 36 drives is possible in your setup. SirMaster • I cool all my LSI chips with $6 40mm fans that I twist-tie to the heatsink. I am a bot, and this action was performed I have measured the hba card's heatsink temperature (using a infrared thermometer) at idle (29C) and under load (32C). ESP8266 WiFi Module Help and Discussion Members Online. To download this document use the orange Most of the recent LSI controllers do support both RAID and HBA modes. Flashing cards and reprogramming them from raid mode to hba mode is only normally necessary for oem cards like when Dell takes an lsi card and makes it a raid card. 2, both parameters outside the bounds of the issue. LSI 9300 series HBA is a great and standard option. Cannot get Adafruit BMP280 sensor to be read by ESP8266 -- fairly certain this is a code issue I wrote a short guide on getting through CGNAT upvotes Most of them support 128 or 256 drives with SAS expanders/backplanes. I have been successful and I plan on writing a guide soon since I found no guides online but I have hit a snag trying to boot from an LSI 9211 HBA in IT mode. It looks like the lsi expansion card is working fine. I am a bot, and this action was performed automatically. So with an expander, you can run a whole lot of drives (I have 30 connected to one HBA), and given spinning rust that's ~40 drives you can saturate at one time, assuming gen2 PCI-e, IIRC. They're available for about $15 per cable from Supermicro, plus $9 However, swapping my graphics card and the LSI card results in both being detected and all drives showing up. Though the drives will indicate that they are not accessible this is not technically true they just need a controller that can communicate with the HDD controller so a firmware update and factory reset can be done. So, for those who have issues with an LSI HBA in an Asrock board, seems like the only solution is to switch motherboards. I wrote a short guide on getting through CGNAT Hi all, having trouble getting an HP MSA20 rockin', havent been able to configure it at all so far. I have enabled all the settings in the BIOS. I know there are a lot of cheap SAS2 HBA cards out there but im concerned that their performance will be low considering how old they are. I did find an old comment to a question of connecting an SAS2 HBA to an SAS3 backplane that mentions the part number to a cable suggested in the manual. 01. 0 x8, I think this should be able to fit in one of the mobo's Gen4 x16 PCI-E slots? SFF-8087 to SATA Splitters With 4 ports on the HBA card and each port potentially providing 4 SATA connections, this is a potential of 16 SATA connections which will fit UEFI supports 3rd party bios just like non-UEFI does. It will host 8 8TB SATA III 7200RPM disks. One for the You want the HBA to drive to be the bottleneck, not the RAM to the HBA controller. Looks like the 4C already has 8 sata ports tho right? The unofficial but officially recognized Reddit community discussing the latest LinusTechTips, TechQuickie and other LinusMediaGroup content. Reply reply Switching from a no name hba card that was 3. Do you have other drives working on the HBA controller? I would test the hard drive on mobo using a different sata cable(not connected to the controller) It could just be a bad cable on the mini sas to sata. This subreddit has gone Restricted and reference-only as part of a mass protest against Reddit's recent API changes, which break third-party apps and moderation tools. I just want to to make sure. I'd like to know which are the most relevant HBA models at the moment (versions, features, prices), if I need to flash a firmware. Although the LSI logo was there, the edging is not as a two-tone as an original card. I also have what appears to be an LSI 2108- but according to this article, that is simply the name of the controller. Copied his guide, installed TrueNas without any problems. PCIE-8 HBA in PCIE-16 slot I have an older mobo with a few PCIE-1 slots and 1 PCIE-16 slot. Got an LSI HBA in another server, its BIOS runs during boot so thats good. Beginners guide for in depth Proxmox configuration like ZFS i am using lsi logic sas2008 card but my card is an external das type controller. I'm running a on it for about a year with no issues. Ive had it in for about 30 mins. The main thing stopping me is that there seems to be a ton of FUD about ending up with a fake/counterfeit card, even from Amazon and similar sellers, let alone on Ebay. Taking my first stab at setting up ESXI and a home server. Reddit is dying due to terrible I have an HP DL380p Gen 8 and installed an LSI SAS 2308 HBA to pass through 4 disks to a TrueNAS Scale VM. I've confirmed that both HBA's shows up when running lspci: 2b:00. As I am in the process of part picking for my new TrueNAS machine. 0 6Gbps (I I'm a little confused, if the card is in HBA mode, isn't it expected to act "transparently". At the time I had attempted to flash it to IT mode to use it in a NAS, but was unsuccessful. I have selected these models. Typically, after a quick search I’m unable to find it!. Adding an HBA card to your system and attaching drives to I want to use it for a big number (>10) of sata3 western digital hard disks and sata3 samsung evo ssd. When I plug in one of the sas cables into the board, all of the drives connected to that cable show up. The card is recognized by proxmox and I can passthrough it to my TrueNAS VM. The most reliable way of cross-flashing to LSI firmware is to use the Dell SAS 6Gbps HBA firmware as an interim step. Ye, I attempted to search for solutions for both the Dell LSI card and the HP 'HBA' but found nothing that seemed useful. It has been working well for a few weeks. I recently purchased a 9200-8i HBA from eBay to add to my server and I had the following questions that I'm hoping someone here is able to help me answer: Can someone clarify that SAS-2 is 6Gbps SAS, and that the LSI 9200-8i doesn't have the 2TB limit? Also, is 9211-8i firmware enough on a SAS-2 controller to avoid that limit? In the market for an LSI 9400-16i to free up a PCIe slot on my Plex server and see lots of counterfeits on eBay but has anyone had horrible experience with these fake cards? This subreddit will NOT help you find or exchange that Movie/TV show/Nuclear Launch Manual, visit r/DHExchange instead. It suggested a faster LSI-93XX series card, which I believe is 12gb/s / lane. Did I get the wrong HBA card to flash for HBA IT?! I bought a IBM SERVERAID M5015 6GB/S SAS SATA RAID CONTROLLER CARD L3-25121-50E thinking that I could flash it to IT / HBA mode to build my first Unraid server. For immediate help and problem I have checked the guidelines of choosing the card on trueNas website. 0 Serial Attached SCSI controller: Broadcom / LSI SAS2116 PCI Get the Reddit app Scan this QR code to download the app now. Can anyone tell me which one would be best in terms of Broadcom (former LSI, Avago) HBAs and RAID controllers are very popular in STH, FreeNAS and other communities. It's possible the bios is just disabled. So I guess it's possible that it would work but probably easier to just use the LSI firmware. Join and and stay off reddit for the time being. 00. Perception - there is nothing on the LSI card that makes it more reliable. There are a few guides on YouTube. Both Oculink ports are capable of PCIe Gen 4 x4 speeds. It's using the SATA protocol when connecting to SATA drives. Reply reply xontik • Same fan here :) Reply reply More replies. Not sure what guide you're following but it looks like someone posted some Hi all, The HBA card I got had a heat sink/shroud thing on a chip, which I'm assuming is the controller. 0 Serial Attached SCSI controller: Broadcom / LSI SAS3008 PCI-Express Fusion-MPT SAS-3 (rev 02) 2c:00. View community ranking In the Top 1% of largest communities on Reddit. For immediate help and problem solving, please join us at https://discourse. They don’t have the LSI branding on the PCB, as they were not manufactured under the LSI brand and on new revision PCB’s. Please contact the moderators of this subreddit if you have any questions or concerns. 00-fbsd So it looks like the FreeBSD Driver is greater than my However I have eight 6TB WD SATA disks connected to the LSI HBA via two "SFF-8087 to SATA Forward Breakout" cables; these disks aren't showing up. Any drives attached should just be presented to the operating system and I've been able to operate without thinking about my LSI card at all. Furthermore, you have to remember that each PCI-E lane is serial, so if you are not completely saturating every lane's bandwidth, 8 lanes of 2. LSI 9201-8i LSI 9211-8i LSI 9207-8i LSI 9300-8i LSI 9201-16i LSI 9300-16i Dell H200/H310 i think we'll be fine with older/slower 9200 as we'll never see the speeds of the 9300 HBA card since our disks will never be fast enough. But upon adding HBA, Proxmox freezes. Moreover, HBA cards from LSI do support RAID-1 and RAID-10 (just don't support parity RAIDs). The above article says that these cards (SAS 2008 variety) can be slower though. Hba cards are absolutely more reliable than the junky sata cards you get on a motherboard. The SAS expander should already be on the backplane (double check me, I didn’t read the manual, just the specs page). LSI HBA high power draw - any way to reduce it? Found a cool game that runs fantastic on a lower end system? Great! Do you have a guide for running a newer game below the minimum requirements? Share it! We Get the Reddit app Scan this QR code to download the app now. This was the real driver for me and a slip-up from the big boys basically saying if you're actually listening to what we're saying and not reading between the lines you're a fucking moron as we make millions a minute and View community ranking In the Top 1% of largest communities on Reddit. Or check it out in the app stores TOPICS Lsi hba 9207-8i Question/Advice This subreddit will NOT help you find or exchange that Movie/TV show/Nuclear Launch Manual, visit r/DHExchange instead. 0 can conceivably be faster than 4 According to the backplane manual (3-4, 3-5), it seems I need two cables with SFF-8087 (to HBA) to SFF-8643 (to backplane). com with LSI / HBA raid card for physical X4 PCIE Maybe yeah, the manual words it in a very confusing manner. Thanks again for all the suggestions you guys gave me. I ended up choosing a 9211-8i card and there were no issues with it. No way around it. An old guide is available at https://www. In spite of their popularity there is a surprising lack of This is the FreeNAS Quick Hardware Guide. mpr0: <Avago Technologies (LSI) SAS3224> port 0x7000-0x70ff mem 0xc5e00000-0xc5e0ffff irq 34 at device 0. Any way to tell if I can put an LSI PCIE-8 HBA in the slot and have it work? Update: in my case this doesn't work. HBA: LSI SAS 9207-8i (in IT mode) Drives: 4x 6TB Seagate EXOS (detected in Moreover, HBA cards from LSI do support RAID-1 and RAID-10 (just don't support parity RAIDs). Despite seller promising that the card was pre-flashed to IT, the card actually arrived with some IR mode firmware. The unofficial but officially recognized Reddit community discussing the latest LinusTechTips, TechQuickie and Yes, this. So I did the same (got an ROG Zenith Extreme on sale which was same price as the Asrock Fatal1ty) and the LSI HBA was immediately recognized and is now working as it should. Once you've done that it's one more simple command to flash it to the LSI firmware which has been used by tons of people for years. I think the LSI HBA appears up under camcontrol devlist as <AHCI SGPIO enclosure 2. I'm looking for recommendations for an LSI HBA card that would work for this system. based on the advice of this forum i have found the #1 recommendation to be the LSI 9211 4i HBA + breakout cables. I can't say I've ever seen an LSI HBA with a connector less than x8 wide. You could use an older 6g HBA (9211 8i) with (2) 4 port SAS expanders. Early on in the build process I bought a PCIE card with 8 SATA ports. Internet Culture (Viral) HBA is not relevant but great that you liked to the manual that says The LSI SAS 9215-4i4e HBA has onboard Flash memory for the firmware and BIOS, and NVSRAM for RAID support (RAID 0, RAID 1, RAID 10 This subreddit will NOT help you find or exchange that Movie/TV show/Nuclear Launch Manual, visit r/DHExchange instead. ) and the corresponding connected ports. d/ directory. If you are buying the lsi branded card they normally come in hba mode so you won't have to do much unless you want to update the firmware. I'm looking to expand the storage in my FreeNAS box beyond the motherboard's onboard SATA ports, and the tried and true LSI cards seem like the only way to go. The LSI SAS 9207-8i is gen3. 32 via SAS expander and 4 UPDATE: I decided to get a new motherboard (ASUS PRIME Z790M-PLUS D4) and HBA card. Reply reply Top 1% Rank by size LSI SAS 9207-8i I am open to other suggestions, I know that backplane is only SAS2 but I figured a SAS3 card might perform better/handle very high IO better. Either way I'm going to reuse the old card with the old hardware and create a test server that won't be on all the time. 0 0001> at scbus14 target 0 lun 0 (pass4,ses0) But the eight disks don't show up anywhere. Internet Culture (Viral) Amazing; Animals & Pets sata ports this mobo has and add an HBA. Then I came across a few posts saying these cards where a bad idea and anyone that wanted to do this thing seriously did LSI/SATA/HBA. That how it fails: If fast boot is enabled, then it's stuck on Asus screen with code 19 (the manual says: SB Initialization before installed memory). I bought a LSI 9211-8i HBA off ebay to use in my r710 that I bought impulsively a few weeks ago. Thanks Pressing Control+C/Control+R on boot when prompted should bring up a menu for the card (an IT-mode card will not allow for creation of RAID group). I added the "intel_iommu=on,relax_rmrr iommu=pt" in grub, I included all these lines vfio vfio_iommu_type1 vfio_pci. Learned the hard way when I bought a PCIe 2x (9240-8i card) which will work, but barely support 8 drives on my motherboard. LSI HBA incompatibility with X470D4U and R5-3600 BIOS revisions (3. So using an adapter which converts the Oculink port into a full PCIe x16 slot but with x4 bandwidth, I was thinking of plugging in a Gen 4 LSI HBA such as the LSI 9500-16i to give me 16 sata ports. Saw some posts about taping a couple of pins on the H710, but the symptom didn't match what I was experiencing. If you want to learn more, see my previous build guide. completely brand new. I have a dell r810, which has a perc H700. i've got the MSA20 RAID controller VHDCI'd to the LSI card, and the controller's serial hooked up to /dev/ttyS0. 0 to an lsi 2. As others have pointed out, some used HP/Dell/Supermicro cards on ebay are just rebranded LSI cards which can be a good affordable option. com with the ZFS community as First LSI is a brand, and most common. Although I don't have anything to worry about since my Seagates are 14TB Ironwolf Pro and 14TB Exos X16 and am running 6. Got it just to get all of the drives off of the onboard SATA controller and free up some expansion options. My two centsI've purchased about 4 or 5 HBA and hardware RAID cards over the last few years. This subreddit will NOT help you find or exchange that Movie/TV show/Nuclear Launch Manual, visit r/DHExchange instead. So I'd probably feel safe assuming most of the manual specs/drivers/etc for the 9211-8i and friends applied to it as well. Does anyone know of any viable solutions instead of the LSI HBA route? I've been trying to find ones that aren't port multipliers. 2 and convert to just one My motherboard's SATA is full so I am now looking for recommendations on a reliable LSI HBA. However it's possible to connect them to slots providing only x4, with the expected decrease in bandwidth, as long as they are the right physical width. Any ideas what could be preventing the card from being recognised in Hmm didn't even know about this. Is there a buying guide you can suggest me? A general guide about HBA models is also very appreciated. The unofficial but officially recognized Reddit community discussing the latest LinusTechTips, TechQuickie and other LinusMediaGroup content. This subreddit will NOT help you find or Well, in manual it says that it blinks green to indicate that the HBA is capable of general activity, so, it's normal. I noticed that the card is extremely hot, so hot that it almost burns your fingers and I do not Some (most older) LSI's can work in one of two modes: IR - full-fledged RAID controller with it's BIOS and whatever, which does not expose raw disks to OS; and IT (initiator-target) - basic HBA (disk controller) mode which does not do any processing and just exports raw disk drives to OS. How about the ones that plug into m. System: Z790/32GB/SnapRAID. It consists of: 2 x Intel AXX6DRV3GEXP 6 drive Hot-Swap Expander Kit (compatible with SAS and SATA drives) *** DUE TO REDDIT'S API CHANGES, THIS BOT WILL SHUT DOWN ON JUNE With the LSI in HBA mode, it still cannot recognize the drive. I run 24 drives off LSI SAS 9300 8i and have another 24 bay chassis ready for further expansion. You can either order another mini sas to sata or just return the lsi controller all together since its so new LSI HBA cards have gotten goofy with pricing in the last couple of months. I even added 2 config files in the /etc/modprobe. The HBA would work with any motherboard. All 3 drives are connected to the HBA card. I've been looking at the 9207-8i, but after reading some posts Do you guys have any recommendations for an HBA card with 8 or more ports based on value (>$100 preferably, will be able to do >$150)? Also, ELI5, what is the meaning of the numbers Title - which HBA do you think is the "best bang for the buck" to use with spinning hard drives? I'm looking to install an HBA as I'm running out of SATA Ports on my Motherboard. Read through academic solution brief, no mention of cache for my stuff? Finally, read through the 2014 guide looking for "cache", no dice, same for 2013, and BOTH the 2012 guides, no references to "cache". Do yourself a favor and avoid hardware RAID. Come and join us today! Any modern LSI 9200 / 9300 HBA is perfect for TrueNAS be sure to put it in IT mode. I recently picket up a Dell poweredge R520 and decided to flash the Perc H710 D1 Raid controller to LSI IT mode HBA -> According to this guide. 0 numa-domain 0 on pci8 mpr0: Firmware: 16. 50 shipped a week ago or so), and they now include language around using pci-e bifurcation in the manual: with my workstation and make sure that the specific 3600 in a different motherboard still Get the Reddit app Scan this QR code to download the app now. The HBA has its own BIOS onboard which loads after UEFI. I have on hand an LSI-9211-8i, which is obviously 6gb/s / lane. Looking to find out the drive details (sn/capacity/etc. Some people erase the onboard BIOS for faster boot times in which case the HBA still works fine, you just can't boot an OS off of it. For jbod, you don't actually need to get into the bios, just plug stuff in and go. CPU: if you want to use any hardware transcoding an Intel CPU is good for the QSV. The heatsink pins looked correct in this model but the J2 and J7 pins were unfilled. but you would be pretty safe with a hba lsi card, in my opinion, basically most dell cards are rebranded lsi, I'm dad. LSI HBA upgrade So I just received my LSI HBA in that mail today. As far as I know, the perc H700 is simply a rebranded LSI card. 0? as you only need a pci X8 slot for most cards. Now you says only 1 pci slot or is only 1 thats 4. This subreddit has gone Restricted and reference-only as part of a mass protest against Reddit's recent API [FS] [US-W] 12 Bay DAS (Direct Attached Storage) and LSI HBA SAS9200-8e COMPLETE SOLD Selling my DIY 12 bay DAS. I do also now get some output from the card before the motherboard bios screen. Giving you more room to grow. This subreddit has gone Restricted and reference-only as part of a mass protest against Reddit's recent API changes, which break third-party apps and lsi hba causes random boot fails -15 times and it boots. I wanted IT/JBOD mode to pass drives directly to OS. Edit: I think I settled on the dell 9217. With VMware ESXi, you need a separate VM to serve as NAS (so even if the controller is not supported by ESXi, you can try to pass it through to something like TrueNAS, Starwinds SAN and NAS or OMV and setup a RAID inside). practicalzfs. servethehome Help with LSI HBA 9201-16e - Firmware v20 - IT Mode Reddit API protest. Or check it out in the app stores TOPICS Get a LSI hba with 4x4 ports and you've got 16 drives Do you have a guide for running a newer game below the minimum requirements? Share it! We help people with low spec PC builds, but TRY TO INCLUDE some relevant gaming A community dedicated to the discussion of the Maschine hardware and software products made by Native Instruments. Or check it out in the app stores I have a EPC612D4U-2T8R motherboard with an onboard LSI 3008 SAS3 controller and it is currently in IR mode. If using FreeNAS/TrueNAS, the command "sas2flsh -listall" should tell you if it is in IR or IT mode. Lot of advantages to using a popular purpose-built HBA rather than a RAID card flashed into IT mode as a mod. Usually the motherboard manual usually has a diagram which shows the layout how the devices are connected and which route they take. So about 2 years ago I got my hands on an LSI 9211 8i HBA,. a) As I am reading, LSI HBA (9211-8i) in IT mode will not support TRIM, so how do I connect the mechanical disks to LSI, and how do I connect SSD to onboard adapter ? If the SSD supports Deterministic Read Zero after TRIM (RZAT), the LSI supports TRIM on said SSD's. My Supermicro board has something like this which helps you plan the layout of your I think I saw a post some time ago that those HBA’s you have linked from eBay, do use legitimate OEM parts. Hi all, My Situation: I have a LSI 2008 SAS Fusion-MPT SAS-2 [Falcon] in IT Mode and 4 SAS HGST 3TB Disks attached to it. 0 1x running in 2. You can always boot Linux and do a lspci to verify the card is visible. 03. Can you please tell me specifically what guide you are referring to? What page? So about 2 years ago I got my hands on an LSI 9211 8i HBA,. This has been happily running Unraid drives for a couple of years, no issues. In your setup (GPU+HBA) your gpu will operate at x8 with an HBA in. Get the Reddit app Scan this QR code to download the app now. I cannot find a source for IT mode firmware. I have an LSI SAS 9207-8i controller bought from Art of the Server on EBay and pre flashed to IT mode. Search for that firmware. Welcome to your friendly /r/homelab, where techies and sysadmin from everywhere are welcome to share their labs, projects, builds, etc. You’ll be happy with it. HBA is a host bus adapter this is what you need, if you look there are alot of raid cards that have been converted to an hba, simply put a raid card handle the disks, and a HBA passes the disks to the OS. So I went to ebay and as an experiment I bought this: 9207-8i PCIE3. The page serves as a platform for users to share their experiences, tips, and tricks related to using Maschine, as well as to ask questions and get support from other members of the community. 0 and it shows the HBA but lists the status as "Unknown" and the drives aren't showing. From various sources (which can all be found below), it appears that the controller for most raid cards are usually made Just got a LSI 9207-8i plugged it in and it works without a problem. However my power consumption almost doubled from 25 W to 45 W. 0 8x sped up my speeds. Or check it out in the app stores TOPICS I got a 4 port LSI 9211-4i 6Gbps HBA LSI 9211 P20 IT Mode 8087 cable from ebay for $30. The drive is going to be the limiting factor since OP is using mechanical drives. From my understanding, LSI HBAs are known to be reliable but they tend to suck up power and generate heat, plus they prevent higher C-states in Intel Chips. Before the installation, I first replaced the thermal paste and then connected only the card without drives. This is much older hardware but this is not going to be a production NAS, just home HBA cards are a simple way to extend a computer’s connectivity using some PCI bus bandwidth for other applications like storage. When the OS (on a different drive) boots up it loads the driver for the HBA and then you use it like Reddit iOS Reddit Android Reddit Premium About Reddit Advertise Blog I bought a "LSI SAS 9207-8i" HBA for my Minit-ITX Nas home server. For example, my motherboard provides 5 slots at x16 width, two of which provide x16, two x8, and one x4. I attempted to follow a new guide, only to be met with the same problem. If fast boot is disabled, then it is showing code 19 for 1-2 sec (on successful boot this code is so fast it's not seen), then boot Something to be aware of. You can run a LOT of drives off of a single HBA, actually (eg, the 9240-8i I have supports 256 addresses). LSI HBA Card - It's PCI 2. Or check it out in the app stores I'm looking to display the connected sata drives to my lsi hba 8i with a sas expander in Windows. i'm able to read that just fine with these settings: 19200,8,N,1, however i cant do anything else with it. The under load temp was taken while copying a large file to 2 spinning hard drives while playing a blu-ray disk in an Asus BDR drive. I bought an LSI HBA. I have 2 drives connected to a new LSI 9200-8i. The LSI card has no additional retry mechanisms specific to it for SATA. TrueNAS Scale has broader hardware support, but for 10g cards look at Intel, Mellanox, Broadcom. nbojjw rhoza bbsrz hdwqu vkgr hxxldb udor sgssmld mmv yzbeu