Server Message Block is a network file sharing protocol created by Microsoft. This is the protocol used for file and printer sharing on Windows networks.
Questions tagged [server-message-block]
593 questions
11
votes
7 answers
Speeding up rsync over smb
I'm backing up a Linux box over SMB to a NAS. I mount the NAS locally and then I rsync a lot of data (100GB or so). I believe it's taking an awfully long time to do it: more than 12 hours. I would expected to be much faster once everything is copied…
Pablo
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11
votes
7 answers
Windows Server 2012 R2 performance for Mac OS X Clients (File Services)
I am inheriting a Windows 2012 R2 Server that is experiencing abysmal SMB/CIFS performance for Mac OS X Clients in particular. The server is doing file services and is an Active Directory Domain Controller (one of two for the domain). It is the PDC…
sardean
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11
votes
6 answers
Why is samba denying me access to my share?
On my CentOS 5.2 box running Samba (3.0.33-3.29) I created a folder called /upload.
In samba I configured a share like this:
[upload]
comment = upload folder
path = /upload
valid users = kevin root
public = yes
…
Kev
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10
votes
1 answer
throughput drops near zero using directional radio relay
We are using the following 1Gbit/s radio link setup:
Location A:
internet gateway with 1Gbits/s sym. fiber
most of our servers including dhcp, dns, fileservers (smb), voip-server, exchange-server
55 clients/users
directional radio relay A…
Stephan
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10
votes
4 answers
Small writes to SMB network share are slow on Windows, fast over CIFS Linux mount
I have been struggling to fix a performance problem with a SMB/CIFS share when performing small writes.
First, let me describe my current network setup:
Server
Synology DS215j (with SMB3 support enabled)
Clients (same computer dual-booted wired…
mevatron
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10
votes
1 answer
Why do "net use" and windows "map network drive" share have a drastic speed difference?
Why, when I copy a file (windows explorer copy, paste), am I getting ~100KB/s transfer rate from a drive mapped using the "net use" command in the command prompt and between 25-50MB/s transfer rate when I map the drive using Windows explorer? What…
JNadal
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10
votes
6 answers
Preventing Mac OS X clients from polluting Windows shares with resource forks
When Mac OS X clients copy files in a Windows share, they'll create some files like .DS_Store and ._ prefixed hidden files (that I think store resource forks of the files).
How can I prevent pollution of these shares by these files?
A solution that…
mmx
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9
votes
1 answer
OmniOS/ZFS/Windows 7: "Save as" from within applications lags 5 seconds for all file sizes over CIFS/SMB
Situation:
The following strange problem has occurred on a single file server running OmniOS r151018 (95eaa7e) serving files over SMB to Windows and OS X guests.
Saving certain files (.docx, .xlsx, some images) through the "Save as..." dialog window…
user121391
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9
votes
4 answers
Secure way to mount a password protected cifs share in mac
I'm maintaining a heterogeneous network of mac and linux so I decided to create a little perl script to unify mounting strategies across machines.
Actually, I already have a working perl script, however, the password seems is part of the command…
icasimpan
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9
votes
2 answers
Why can't I connect on port 445?
I need to collect baseline performance data on a SQL Server running on Windows Server 2008 R2. When I open perfmon on my computer running Windows 7 and try to add counters from the remote server, I receive an error stating "Unable to connect to the…
Rob D.
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9
votes
2 answers
Is there a flag I can pass to either `df` or `mount` to make them display results for only locally-mounted filesystems?
I'm getting mighty tired of having to manually egrep out NFS- and SMB-mounted filesystems whenever I am checking on the condition of locally-mounted filesystems. So, my question is thus: is there some combination of flags that I can pass to either…
ZaMoose
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9
votes
6 answers
SMB claimed to be "slow"
Our company network (which I believe is a windows domain run on server 2008) is painfully slow. A prime example of this is copying files over SMB - listings take minutes, and copying even modestly sized files takes even longer. When approached…
Nate
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8
votes
2 answers
KB 4480970 and or KB 4480960 breaks SMB2 connections to Windows 7 shares
It's become clear that last night's (Tues Jan 8th 2019) patches to Windows 7 broke SMB2 networking in Lanman Server.
One or both of KB 4480970 and KB 4480960 results in any OS that uses SMB2 (such as Windows XP, some Windows 7, and same generation…
Andrew
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8
votes
2 answers
Moving Hyper-V virtual disk to SMB share gives file not found error in the end
I want to move some virtual disks to from an old ISCSI disk (old NAS) to a new SMB share but for every disk it gives a file not found error in the end and gives the location of the disk on the SMB share as file not found location.
Whether I move a…
aardbol
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8
votes
3 answers
Can "wannacrypt" (wcrypt) spread via Linux server serving over SMB?
Is it possible, or will this only spread via a Windows machine serving over SMB?
If Linux serving over SMB can spread wannacrypt, what's the approach to take?
fredrik
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