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Thanks again for all the clarification. Okay so I did as everyone suggested, upgraded to the latest stable version and reinstalled all the ports as well. However, I am still a bit worried about if it worked or not. Is this how your root, usr and var directory permissions look like? /...

Thanks everyone for the awesome support! Just curious about how dangerous is this? If I'm the only user and ever will be, but if it''s a production machine running a web service, does this make the system vulnerable to attacks from outside?

I only back up my data, not the entire OS.

Please help! I accidentally overwrote all file permissions on the root folder. In / directory: chmod -R 0777 * Is there some sort of rollback or "reset to default" command? OMG, I'm so stupid! :(

Thanks guys. netstat shows no packet drops either so that's good. There is so much misguiding information out there regarding 1 GbE max throughput. Thanks for clearing it up with the wiki page.

Oh, I should mention that I am able to use nginx for video streaming with over 100 concurrent connections and throughput of over 50 MB/s. So I know it's not a disk I/O, processor, or network issue. Do you think it's the client machine from where I am running apachebench?

I am getting out of the box performance for static files as 30 req/sec. This is extremely low. Disk activity and processor are 99% idle. Is this because of ZFS or what can it be?

How can I check the packet loss? I am with a dedicated server provider so I am not sure about the details. However I am testing between servers in the same datacenter. It's an Intel NIC, not sure of the model but it's an "enterprise" level NIC and very good. I think it's an OS/NIC tuning issue...

Actually, I found this thread where two people have claimed to hit 125 MB/s for some time. http://forums.whirlpool.net.au/archive/1667275 Both of them are using Apple xServe. One of them even posted a graph.

Trust me, that's perfectly fine. I use much more in a production machine. Just make sure you have enough RAM.

I have tried tuning the network card for several weeks and the most I was able to get was 117 MB/s (936 Mbps). The maximum should be 1000 Mbps (125 MB/s). Yes the difference is just 8 MB/s but thats a potential 20 TB over 1 month. 8 (MB/sec) * 3600 (sec/hr) * 24 (hr/day) * 30 (days/month) =...

vfs.aio.num_queue_count is very high, at 128. However, ms/r is very low, less than 5ms. gstat shows the disk being 90-100% busy. I think something is wrong because usually the disk shows 100% busy when ms/r is about 30ms. Anyone have a clue what might be wrong? I set vfs.zfs.vdev.max_pending=2...

No SSD's, compression is turned on, however, the 16 GB file I used for testing with bonnie++ (2x RAM) has compress ratio of 1.0x I know the numbers are so high probably because I concatenated a 2 GB file 8 times to make one large 16 GB file and probably ZFS detects some pattern in the file and...

Actually, I did test using bonnie++, the results might be bizarre but you can see the relative difference, 4-way mirror: Read=704 MB/s Write=310 MB/s stripe of 4 disks: Read=1542 MB/s Write=704 MB/s The stripe is a bit more than 2x the read/write speeds compared to 4-way mirror. However, I...

I think you are right, 4-way should be the best for heavy concurrent reads. I was just doubting ZFS's capability to co-ordinate reads from a 4-way mirror efficiently. Thanks.

You might want to 4k align the SSD partitions and lookout for erase boundaries. There are also some other partitioning steps you can take to sometimes double your performance of SSD cache devices. Search on this forum, the storage expert Sebulon has explained this in more detail in a different...

I'm not an expert but I would use ZFS RAID only. Hardware RAID can't detect silent errors (whatever that means). Also, with ZFS you can export drives to different systems and actually move the physical set of drive to different servers if you ever needed to. Also, it's cheaper since you don't...

So what is faster for parallel random reads? a) 4-way mirror (RAID1) b) 2x 2-way mirror (RAID10) c) 4 drives striped together (RAID0)

Awesome Thanks! I didn't know that was possible! I contacted the service provider and they have assigned me a 'portable' static ip block that can be used by multiple servers on the same VLAN. I bet this is what I needed. I was so confused before as to how an IP address can just float around...

Yes, I have two servers each with their own dedicated static IP address. Sorry about all the confusion. The part I'm having difficulties understanding is where do i get the IP address for the virtual interface. I understand this virtual interface must also be a static IP address facing the...