1/23/2024 0 Comments Winrar unzip multiple files![]() RAID 5 & 6 Give you about 90% of the read/write speed of all drives. RAID 0 Stripping = the max speed of all drives as membersĭanger Any single drive fails all files are broken. If your doing JBOD you max the performance of a single drive. Next you must consider how many disk you want and if your doing Just A Bunch of Disks (JBOD) or some kind of RAID. USB 3.1 is 1250mb/s ( max effective is less).USB 3 is 625mb/s( max effective is less).Gigabit 125mb/s common, and minor bottlenecks against hdd.ġ0 gigabit 1250mb/s hard to find NAS, no bottlenecks.SSD are 500mb-550mb/s via SATA or ESATA version 3.Most modern hard drives max around 120mb/s read, and at least 20mb/s slower for writing speeds. Your CPU may bottleneck your performance well below the 600mb/s mark depending on the compression,level of compression used, type/speed of main memory.įirst you have to decide hdd or ssd and how many. If you throw enough hardware at it, you can get the extraction speed to be effectively the same. 4k is about 40-50mb/s with h265 compression, and most software does not copy the file locally. I stream 8gb 1080i files all the time with gigabit are only 10Mbps/second. Videos are surprising low bandwidth by comparison to the numbers we are about talk about. People doing similar things (large file copies) on the same network segments as you will cause your connection to be slower. Other people reading or writing to the network drive or accessing servers on the machine may cause it to slow down. ![]() Are you the only person using his network drive? If your computer is slower than 100megabytes per second decompression (unlikely unless it is particularly old) then your computer will be the bottleneck and the above two items are not likely to be your problem. Can your computer decompress the data fast enough? ![]() Can the machine on the other side handle reading and writing this amount of data at the same time?Īn SSD would be able to handle this happily, a RAID array might, but a single hard drive probably won't. As such it means that over Gigabit (and with a reasonable Gigabit switch that you will be able to get (approximately) 100megabytes per second from the network and 100megabytes per second to the network at the same time. If you have a decent 100Mbps card or a gigabit Ethernet card then chances are the answer to this is "yes". I guess it's good for backup only and not for "drives in active use" This NAS thing is starting to look iffy to me for my use case. ![]() Will the video file need to be transferred to local PC first on the background before it is played in media players? While on the subject, what about playing large video files, what if i want to open/access them from my PC (mp4, avi, etc). Aint that gonna be painfully slow? Or am I getting this wrong? NAS shared folder) it needs to transfer that RAR file (say 5GB rar file) over the network to temp directory, extract that rar file in temp, and them move all that extracted data back to the shared folder - all going through the network. But now I'm wondering, since i'll be extracting and compressing lots of large RAR files on this external drive, would it be much slower to do so on a NAS than USB?īecause logically im assuming for my Windows PC to extract a RAR package located on a shared folder on the network (ie. I was going to go with a NAS to keep my setup as simple as possible without the CPU overhead of a USB connection. Esata is obviously the best/fastest but besides that. I have limited SATA ports on my Windows 10 PC and for additional drives that I need attached to it, I'm trying to decide whether to use a NAS (with shared folders), USB 3.0 Enclosure, or go eSata via eSata PCI Expansion card. If i right-click -> extract that rar file (on same shared folder) will that be terribly slower compared to extracting RAR file on local drive in the Computer? Say for example I have a huge RAR file located in a shared folder on the network. Or if you were scripting this, you could dd with bs=1 up to 32k-aligned, then maybe tail -c +$misalignment lastpart/file | dd. Or maybe there's some other tool which can seek to an arbitrary byte position and then do normal-sized I/Os. dd really does make read and write system calls with that block size, so bs=1 really sucks.Ī large ibs (input block size) would save half the CPU time, since seek is in units of obs (output block size). dd can only seek to multiples of the output block size. If the offset you need to seek to isn't prime, then use a block size larger than one. Ls -l dir/file # note the size of the last partĭd if=dir/file of=p1/file conv=notrunc bs=1 seek=$((full_size - lastpart_size)) For example, if you have the first and last rar-parts: 7z x p1.rar 7-zip will extract the part of a file from a multi-part rar, and then you can stitch them back together with dd.
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