Specifications

Working with ChemStation Plus Security Pack
access to the data dictionary
describing the meaning of the
table columns. The dictionary is
only available from Agilent
Technologies against a written
Confidentiality Agreement and
should not be available for appli-
cation users.
Data storage
By default the the database stores
the following data:
• calculation results of the
ChemStation,
• contents of the ChemStation
data directories; the *.d directo-
ries including the chromato-
graphic raw data files,
• current method used for data
acquisition and data analysis,
• current sequence, if a
sequence was run to acquire or
reprocess data,
• sequence, run and method
logbooks,
• detector channel chromato-
grams as images according to
the report configuration of the
method, and
• apex spectra of all identified
peaks in a chromatogram, when
using a 3D detector.
Protection of temporary data
files
The ChemStation uses a given
data directory structure to store
acquisition and result data. The
ChemStation Plus Security Pack
also protects this data. After com-
pletion of data acquisition and a
first result calculation, by default
the data transfer is immediately
initialized through the ChemStore
spooler and the *.d directory with
all its contents is deleted from the
local hard disk (these default set-
tings can only be modified by a
user with administrative rights in
the database). From then on, the
data security mechanisms of the
database itself secure the data.
The temporary directory where
the database spooler stores inter-
mediate data is protected using
Windows NTFS file security.
Reanalyzing data after a first pass
result review in the ChemStation
Plus requires restoring data files
to a temporary subdirectory. The
Security Pack protects this subdi-
rectory hpchem/x/data/chemstor
where x is the instrument session
number with read-only access for
members of the Windows users
group thus denying unauthorized
access for operators.
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Result management
The ChemStation Plus Security
Pack is designed to store
ChemStation data in a relational
database by transferring it as a
post-data analysis spooling job to
the database. The ChemStore C/S
ODBC spooler is a proprietary
tool managing the transfer and
protecting data against loss, modi-
fication or damage in case of
transfer problems or network
errors.
Data protection
Using the Security Pack in the
standalone version, all data is
stored in a single database file.
The subdirectory storing the data-
base files is protected with
Windows file security permission
rights and only allows write
access for members of the
Windows user group.
The application denies access to
data without a valid ChemStation
Plus user-id and password. Any
attempt to access the data in the
standalone database directly with
another application such as MS
Access fails as it requires a pass-
word/user-id combination that is
strictly confidential and only
known by Agilent. It is not known
by or given to any customer with
this product.
Accessing data directly in the
Oracle database without using the
ChemStore user interface is
impossible because users must
have valid user-ID/password com-
bination and they must have