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If you really want to destroy your data, thermite is the key. Just mix aluminium powder and iron(III)oxide in a 1:3 w/w ratio (1 kg should do the trick), place it in a flower pot on top of your HDD, put on your sunglasses and light it. But maybe you're not so serious about destroying your data?

Louder, yes for sure. Not that much hotter though. My 5 Seagates have an average temperature of 31°C while the WD Greens are at 28°C. The WD disks are sitting in a 4-in-3 bay though, and the Seagates are in 3-in-2 bays so the cooling is better for the WDs. Apart from the one WD which is sitting...

After using these drives for a while I have really started to take notice of the noise they are making. They are much louder than my WD Greens when seeking. Is there any way to silence them? It seems that AAM is not an option, but are there other options?

I tried changing the shadow_throttle and it seems to have no effect. Upon further investigation it seems that the shadow_throttle is only used when there are errors in the file system. I found comments like this inside of the source code: I did manage to speed up the transfer by increasing...

I got a new ZFS pool that I wanted to transfer data to from my old pool. After some attempts at zfs send/recv and not getting it to behave properly I discovered this service in Solaris called Shadow Migration...

Roughly 6% (10 hours) into the badblocks test I've got a Runtime_Bad_Block count of 1 on two of the disks. What does this mean? Is this a reason to be concerned or "normal"? I can't find any explanation for what runtime bad blocks means. Badblocks hasn't reported anything though.

Just noticed the following error: pool: tank state: ONLINE status: One or more devices has experienced an error resulting in data corruption. Applications may be affected. action: Restore the file in question if possible. Otherwise restore the entire pool from backup. see...

I got my drives today and they are indeed 5900 RPM. At least this is the value reported by the disk. I also did a frequency analysis using a contact microphone which showed a peak at 99 Hz (5940 min‾¹). Now the remaining question is why Seagate told my distributor it was a 7200 RPM...

The disks have been shipped! Hopefully I will know exactly what they are tomorrow. I already know the serial numbers and I can confirm that the warranty is 2 years (Expiration 24-May-2015) by checking it on Seagate's website. It gives the same expiration date for both the US and Sweden. Any...

This is getting interesting now. I asked my supplier of the disk about the specs for the ST4000DM000 and they confirmed that it is 7200 RPM with 2 years warranty. They said that this information came directly from Seagate. It will be very interesting to examine the disks when I get them...

That encryption is not done inside of ZFS, but rather on a disk level, right? So you have to enter the password for each disk? That's a lot of work if you have many disks and secure passwords. Solaris supposedly does use AES-NI, but the implementation seems to be rather flawed as it doesn't...

I'd love to switch from Solaris, but it has something I want that the alternatives don't; encryption.

Now I've upgraded to 11.1, but unfortunately I still have the same problem.

I think the Toshiba got the specs wrong on those disks. Power consumption is highest when idle and lowest during read/write operation? I think not. I would contact them so that they could fix that if only I knew how.

I'm pretty sure the store has to give whatever warranty they write on their site here. It may be different in other countries, but in Sweden we have pretty strong consumer protection. Yeah, but we're a little behind here in Sweden. Another store had today as the expected delivery date, but is...

Oops... that may well be the issue. I haven't upgraded to 11.1 yet. I will try that. Another question: I'm currently running a pool consisting of a 5x2 TB disk RAID-Z. However, since I managed to fill that one up I ordered 5x4 TB disks that I want to add to the pool. Can I simply add another...

Great! I just ordered 5 ST4000DM000s. The estimated delivery date is 2 weeks away though, so availability on these disks seems to be rather poor. I use ZFS, so that ERC is not a primary concern. I get a 2 year warranty on the ST4000DM000 from where I bought it, but many shops offer only 1...

I thought the ST4000DM000 was the 7200 RPM drive and STBD4000400 the 5900 RPM drive. Am I mistaken? All the stores here (Sweden) list it as 7200 RPM. Either way, according to Seagate's specifications of the disk it's more energy efficient than the 3TB WD Red on a per TB basis. I'm thinking...

It should work fine. I'm not sure about the onboard realtek NIC, but if you're putting an Intel NIC that won't matter anyway. The downside is that you can't use ECC RAM on that MB. You'll most likely be fine without, but ECC is great for your peace of mind.

Hi Gea, Thanks a lot for napp-it! I have been running it for 1½ years now and it's been very useful. I sent you a small donation to show my appreciation ;) I'm having one issue now with my encrypted ZFS folders. Whenever Solaris is restarted (usually due to the mysterious ca 9:45 am crash)...

Funny that you should bring up the sequential read case where the difference is the smallest. Now you're transferring at 530 MB/s instead of 460 MB/s from the M4. A mere 15% faster. That saves you about 1 second on a 5 GB file transfer. I would not be overly impressed with that "boost". Even...

There's nothing wrong with the WD Greens. I'm running 5 of them in RAID-Z with absolutely no issues. You just have to use wdidle to disable the head parking. As for the controller, it may be cheaper to use SATA port multipliers ($~40 for a 5 port multiplier).

I'd build a file server. 15 1TB drives in RAID-Z2 or 3 is still 12-13TB of storage. You can do it with fairly cheap hardware.

The key feature of ZFS is data integrity, not RAID-Z.

Not surprisingly, the high CPU usage occurs together with the disk writes. Nothing is written to the disks in between the peaks. So, is there any way to make Solaris continuously write from the write cache, rather than wait until it's full and then write? Other than forcing synchronous writes...

Let us know if you find anything. I think the high CPU usage is indeed a combination of the SHA-256 check-summing and AES encryption. It is a little strange that AES-NI is not able to accelerate the encryption part though. I briefly tried it on a Xeon E5606 at work and it had the same...

I don't know if it's any help, but I'm seeing exactly the same thing. This is also on Solaris 11 with encryption (no dedup or compression). The CPU (Xeon E3-1230) has AES-NI though, which does not seem to help much. It might have something to do with the checksumming, because when I set...

There are unfortunately too many users for that to be feasible. The folders are called ".AppleDouble", ."AppleDB", etc. btw. I'm thinking one (not so pretty) solution may be to let the Mac users piss all over the file system and then manually search for and hide all those folders. Either that...

Yes, that would work, but it keeps creating these folders and files everywhere a mac client browses, so I would need a way to hide them as they are created. It seems that with good old Samba you could set "hide dot files = yes" in smb.conf, but it doesn't have any effect in Nexenta (probably...

As the title says, I'm wondering if anyone knows how to hide the dotfiles in Nexenta. Netatalk just created a whole bunch of .AppleDouble directories that I don't want to see when browsing the shares using CIFS. Any ideas?

I'm giving up on OpenIndiana and switching to Nexenta. So far it's working well. Hopefully it stays that way. Reading the user guide for Nexenta I'm thinking that I should set up a domain controller, since there are so many users in this department. It makes sense to me to have all the user...

I decided to go with an Intel Gigabit ET Dual Port Server Adapter (82576). Unfortunately I'm still experiencing the same problem with the SMB service as before, so the problem does not appear to be the network interface. I haven't tried booting from a Solaris 11 live CD, since that would mean...

Here's a new error message, seems to have coincided with SMB stopping to respond quite well. What does it mean? A quick google search on "nbns: packet decode failed" only comes up with the source code for opensolaris. Jan 10 16:33:34 carbon smbd[856]: [ID 592507 daemon.error] nbns: packet...

So I brought an Intel NIC from home to install in the server, but when I open the server up I realize that it only has PCI-E slots (1 x16 and 3 x8). That's too bad since I only have PCI NICs. Now I'm looking at buying an Intel NIC and notice there's a new one called I350-T2. Does anyone know...

Nope, got the exact same problem again. There is something that might be interesting in dmesg. Last thing before it stops working: Jan 9 16:43:30 carbon sshd[802]: [ID 800047 auth.error] error: accept: Software caused connection abort Jan 9 16:43:30 carbon napp-it-mhttpd[1166]: [ID 895811...

I reinstalled OI and will try to set it up again, hopefully without the same problem. I also had some issues where the napp-it webserver shut down randomly. The NICs are Intel 82576 (just relabeled by HP). I haven't made any changes there.

Now it's done it again. I get a whole bunch of different errors when trying to connect to the shares from windows. If I do an nmap scan of the server it shows two ports as being filtered: PORT STATE SERVICE 22/tcp open ssh 81/tcp open hosts2-ns 111/tcp open...

It's running OpenIndiana (oi_151a). I'm accessing it via its local hostname (needed to set ACLs) and IP directly, but it doesn't seem to matter which way I do it - when the shares go offline they can't be accessed either way. I've only tried accessing the shares via "Map network drive..."...

One of my smb-groups just disappeared in napp-it. On the user page it says: "failed to find An error occurred while retrieving group data. (invalid name)". Where did it go and how can I get them back? It's still listed under unix groups.

I also see the shares getting marked as down temporarily, and sometimes they quickly switch back and forth between online and offline (several times a second). That is mostly annoying when it happens, but ideally I don't want to see it at all. Unfortunately the main problem is when SMB...